The Secret Service announced Tuesday that it has wrapped up the investigation of the five remaining agents embroiled in the sexual-misconduct scandal in Colombia. Two of the agents have resigned while another two have been cleared of serious wrongdoing but could still face administrative penalties. And the fifth had his national-security clearance revoked, which is tantamount to being fired because he can no longer work at the agency. Rep. Peter King, the New York Republican leading the House investigation, confirmed the latest actions in the prostitution scandal that has roiled the agency. King was briefed by the office of Secret Service Director Mark Sullivan. Six other agents have lost their jobs in the scandal through firing, resignation, or retirement, while another was exonerated. In an interview with comedian Jimmy Fallon on Tuesday (to be broadcast tonight), President Obama said the scandal was caused by "a couple of knuckleheads" who "shouldn't detract" from the agency's reputation. What these guys were thinking I don't know," Obama said. "That's why they're not there anymore." —Howard Kurtz

Apple stocks spiked 7 percent Tuesday after the tech giant reported a blowout second quarter, with its earnings nearly double those of a year ago. Apple’s profit rose 94 percent, or $12.30 a share, from $5.99 billion, or $6.40 a share, last year. In that same period, iPhone sales rose 88 percent, and iPad sales shot up 151 percent.

Five states held primaries on Tuesday and Mitt Romney won all five of them, taking victories in Connecticut, Rhode Island, Pennsylvania, New York, and the decisive Delaware. Romney essentially claimed the GOP nomination in a speech delivered in New Hampshire beside his wife Ann. “After 43 primaries and caucuses, many long days and not a few long nights, I can say with confidence–and gratitude–that you have given me a great honor and solemn responsibility,” Romnye said. He added emphatically: “a better America begins tonight.” Rick Santorum has already left the race, and Newt Gingrich is expected to reassess his campaign on Wednesday after a demoralizing loss in Delaware.

James Murdoch is sticking to his story that he never saw an incriminating email regarding phone hacking at News of the World until 2010. Speaking before the Leveson Inquiry into press standards, the former chairman of News Corp.’s British newspaper division insisted management told him the paper had a clean bill of health. Much of the questioning Tuesday focused on the relationship between Murdoch and Culture Secretary Jeremy Hunt, who Murdoch denied acted as a "cheerleader" for News Corp. His father, Rupert, is scheduled to testify later Tuesday.

The $1.6 billion that went missing from the brokerage firm MF Global last year was said to be located on Tuesday, though the investigator looking into the case said it would be difficult to return the money to the firm’s clients. A trustee told the Senate Banking Committee that the money that went mysteriously missing was traced, but it would be difficult to determine where the blame lays on how it was misappropriated and how to recover it. The financial disaster in 2011 sparked panic in European markets and led to great public shame for former New Jersey governor Jon Corzine. It was discovered that the firm tapped clients’ money for separate ventures without replacing it over time.

Rick Santorum did a fine job of dodging host Piers Morgan’s questions on Tuesday night, the most common among them: will you be endorsing Mitt Romney for president? Santorum and his wife, Karen, did their best to dance around the questioning, acknowledging that Romney will likely be the nominee after his five-state sweep. “I'm going to be for the Republican nominee,” Santorum told Morgan plainly. “We're going to do what we can to beat Barack Obama." Santorum and Romney are tentatively scheduled to meet on May 4 to discuss conservative issues that the former Pennsylvania senator wants Romney to keep on his agenda.

Even though the Syrian regime agreed to a ceasefire after months of brutal fighting, violence continues to spread throughout the country. Special envoy Kofi Annan told the United Nations Security Council that the country is still experiencing “unacceptable” aggression and that dozens of people have been killed in recent days. Syrian troops continue to kill civilians, and satellite imagery shows the government hasn’t pulled all of its heavy weapons back from the front lines. Annan said Syrian forces are breaking the ceasefire agreement when U.N. monitors leave certain areas.

It seems that even Sandusky, Ohio, has its share of Mexican drug-cartel criminals. Edgar Campos-Barraza, also know as “El Cholo,” lived in the small town for 10 years before being arrested on Jan. 5. Campos-Barraza is an alleged assassin for the Sinaloa cartel and is wanted for the murder of a Mexican police officer as well as aggravated kidnapping and criminal conspiracy. Federal agents were tipped off to his whereabouts by the Mexican government. He has since been deported to Mexico.

It’s a bird! It’s a plane! Nope. It’s just a really, really slow and law-abiding tow truck leading a painfully slow-speed car chase. That’s what happened Tuesday afternoon in Los Angeles, when a tow-truck driver got into a fight with police officers at the scene of an accident. The driver jumped in the truck and the chase began, but it was what no one expected. Much to the amusement of car-chase watchers on TV and the side of L.A.’s roads, the driver obeyed traffic laws, stopping at stoplights and mostly keeping to the speed limit. Several LAPD cruisers and helicopters followed the truck, which evaded spike strips twice. The chase wound through the San Fernando Valley, Van Nuys, North Hollywood, Hollywood, and Los Feliz. The driver later told reporters the cops were trying to give him a ticket for no reason.

Metta World Peace, the Los Angeles Lakers forward formerly known as Ron Artest, will miss the next seven games after he threw a bruising elbow in a game Sunday night. NBA Commissioner David Stern handed out the punishment Tuesday, which will put World Peace off the court through the end of the regular season—which has just one game remaining. World Peace’s hard foul came while he was celebrating a dunk in a game against the Oklahoma Thunder. James Harden, who was fouled, wound up with a concussion. The suspension means World Peace will miss the first six games of the playoffs. In 2004, he was suspended for 86 games for fighting fans.

President Obama is getting heat for his speech honoring Armenian Remembrance Day. The president avoided mentioning the word “genocide” for the fourth year in a row, despite having vowed as a presidential candidate to acknowledge it. In a statement, the chairman of the Armenian National Committee of America voiced his feelings of betrayal, condemning the president and saying his “pledge to recognize the Armenian genocide stands as a stark lie.” While Obama emphasized that his “view of history has not changed” and applauded diplomacy efforts between Armenians and Turks, his speech was criticized by the other side as well, with the Turkish ambassador in Washington calling the president’s statement “wrongful” and “distorted.”

She fights evil, but first she had to fight carbs. Scarlett Johansson plays the Black Widow in The Avengers, set to come out May 4, but before wiggling into her formfitting costume, she hit the gym, she said on a U.K. morning show Tuesday. “First of all, every woman has body worries,” the famously curvaceous film star said. “I’m not exempt from that.” The 27-year-old model and Woody Allen muse performs her own stunts in the upcoming action flick, and nailing all her cues was another reason to hit the workout room.

The Agriculture Department confirmed Tuesday that a case of mad-cow disease had been discovered in California, but said the diseased animal had not entered the food chain. A case of bovine spongiform encephalopathy, as it is known scientifically, was found in a California dairy cow, but authorities said carnivores need not worry. According to USDA Chief Veterinary Officer John Clifford, the nation’s supply of beef has not been tainted. This is the fourth confirmed case of the disease in the U.S.

Criminal charges have been filed against a former BP engineer who is accused of destroying evidence in the disastrous oil spill two years ago, the Justice Department announced Tuesday. They are the first criminal charges in the disaster, which claimed 11 lives in the initial explosion on the oil rig and then spewed 200 million gallons of oil into the Gulf of Mexico. Kurt Mix, 50, has been charged with two counts of obstruction of justice, with the Justice Department claiming he deleted a string of 200 text messages with a BP supervisor in October 2010 that had internal information about how effort to cap the well were failing.

This could finally be it for Newt Gingrich. It’s a good thing the incessant presidential candidate didn’t tattoo “All the way to Florida” on his forehead, because he’s already (finally?) considering calling it quits. If Tuesday’s primary night ends with a loss for Newt in Delaware, “I think we would need to take a deep look at what we are doing,” he told NBC News Monday night. Still, he was resistant to giving in. “Governor Romney is clearly the frontrunner, but that doesn’t mean he is inevitable. It is very dangerous for frontrunners to start behaving like they are inevitable because the voters might decide that’s not so true.”

It looks like Facebook will enter its pre-IPO quiet period on a down note. The company's profit in the last quarter was $205 million, down 32 percent from the fourth quarter of 2011 and down 12 percent from a year earlier. However, revenue was up 45 percent from a year earlier. The weak quarter can be attributed partly to Facebook's growing expenses as it builds data centers and hires new employees. It's also had to pay out $550 million to Microsoft for patents as it gears up for a legal dispute with Yahoo, and another $1 billion for photo-sharing service Instagram.

Both remaining candidates in the French presidential election are now pursuing the voters of Marine Le Pen, the far-right leader who took 20 percent of last Saturday's first-round presidential vote. Le Pen was a spoiler for center-right incumbent president Nicolas Sarkozy, but challenger Francois Hollande also believes he can pursuade Le Pen's supporters to join him. Campaigning Tuesday, Sarkozy told Front National voters, "I have heard you," while Hollande urged them to express their "social anger" by voting for his socialist party. Hollande said that the Front National's support comes from left-wingers disillusioned with the mainstream parties' collaboration on European economic policy they oppose.

Othniel Miller, a handyman who allegedly gave long-missing Etan Patz a dollar before he disappeared 33 years ago, is also accused of raping his niece, authorities have confirmed. Miller’s ex-wife told the FBI last year that she divorced him after learning about the abuse, and Miller’s niece confirmed the ex-wife’s allegation to the FBI this week. The rape claim was part of the reason that authorities conducted a search of Miller’s basement workshop for Patz, though the search ended yesterday when no human remains were found.

Deion Sanders took to Twitter on Monday afternoon with tweets claiming that his estranged wife, Pilar, attacked him in his Dallas-area home. Sanders says he was in his bedroom when Pilar and her friend burst in and started “kicking, biting, and scratching” him. His wife ended up being transported to the hospital for medical attention, but Sanders claims he was just defending himself. “Pray for me and my kids now! They just witnessed their mother and a friend jump me in my room. She’s going to jail n [sic] I’m pressing charges,” he tweeted. Sanders also sent out a photo of him and his two sons filling out police reports about the incident.

Want to pack a pistol without the unsightly holster? A growing number of clothing companies are eager to help. As more states pass concealed carry laws, companies like Woolrich and Under Armour have started making clothes that allow wearers to discreetly carry and quickly access handguns. The clothes are designed to look like everyday street wear rather than hunting gear. “What we’ve tried to do is create a collection of garments that allows the end user to have stylish lifestyle apparel but have features in the garment that enable them to carry a weapon and draw the weapon quickly,” said the vice president of 5.11. Last year 7 million Americans had concealed-weapon permits, up from 5 million in 2008.

The Justice Department has been conducting a criminal investigation of Walmart, several sources tell The Washington Post and Bloomberg. The probe started in December after Walmart met voluntarily with Justice officials and told them it was looking into whether its Mexico arm had paid bribes. Still, that's long after the retailer allegedly covered up the bribery, according to The New York Times. The Times says a whistleblower informed Walmart executives in 2005 that Walmart de Mexico paid more than $24 million in bribes, but the company shut down its inquiry and didn't inform law enforcement.

After years focusing on tactical considerations in Iraq and Afghanistan, the Pentagon is now looking to bolster its espionage work outside the battlefield. The new Defense Clandestine Service will work closely with the CIA to gather intelligence on targets like Iran. The main force behind the change is Michael Vickers, the undersecretary of Defense for intelligence and one of the architects of the CIA's program of arming Islamist militants in their war against the Soviets in Afghanistan. A Defense official says the change isn't meant to usurp the role of the CIA, but as a “realignment” of the military's espionage efforts.

North Korea has almost finished preparations for a third test of its nuclear capabilities, a source close to the operation has revealed. The news comes just weeks after another failed rocket launch that intensified hostilities between the impoverished regime and the United States. This is the first time a senior official has confirmed a planned test; previous tests happened in 2006 and 2009.

The federal government revealed Monday that Social Security is on its way to drying up in the year 2033, three years earlier than previously believed. The weak economy is partnering with a massive group of aging baby boomers in sucking up the fund, which lawmakers have not made a move to try and fix. Medicare is said to be insolvent by the year 2024, unchanged from its previous expiration date. Higher energy costs and fewer hours worked are also contributing to Social Security’s path towards insolvency, and government officials said that Congress must act drastically to save both it and Medicare.

One of the largest death rows in the United States may shut down if California voters approve a measure this November. The measure, which qualified for the ballot yesterday, would replace death with life in prison without parole as the state's toughest penalty. More than 700 people on death row would have their sentences commuted. Part of the motivation is financial: the legal process takes so long, those 700 prisoners are more likely to die of old age than by injection, and the 13 inmates that California has successfully executed in the last 23 years cost taxpayers $4 billion.

Justin Bieber is tackling the rumors head-on on his new album Believe with a song about Mariah Yeater, the woman who falsely claimed he fathered her child during a backstage tryst. “There are songs about things I’m going through,” Bieber said Monday at an event in London to preview his album. In November, 20-year-old Yeater claimed Bieber fathered her then-3-month-old son and demanded Bieber take a paternity test and pay $260,000 in child support. Yeater’s ex-boyfriend eventually came forward to claim paternity of the child and said Yeater made the claim because she “wanted a $50,000 payday.”

President Obama kept it short and sweet when talking to Jimmy Fallon about his Republican rival Tuesday. He told the Late Night host that he and Mitt Romney have met, "but we're not friends." He also noted that "his wife is lovely" and Romney "seems like somebody who cares about his family." 

Very nice, indeed! British comedian Sacha Baron Cohen had the thanks of a grateful Kazakhstan on Monday when government minister Erzhan Kazykhanov credited his 2006 film featuring the bumbling journalist Borat with growing the country’s tourism trade 10-fold. “I am grateful to Borat, the main character of the movie, for tourists’ keen interest in Kazakhstan,” Kazykhanov said. The mockumentary Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan, was not happily received in the central Asian country when it premiered, but now the minister, who offered his comments while standing in the country’s Parliament, called the response to the film “a great victory.”