Obama: U.S. Will ‘Do What We Must’

In front of the United Nations General Assembly on Tuesday President Obama said that the United States will “do what we must” to prevent Iran from getting a nuclear weapon. “Make no mistake: a nuclear-armed Iran is not a challenge that can be contained … And that is why the United States will do what we must to prevent Iran from obtaining a nuclear weapon," the president said. Obama’s comments came after Iranian President Mahmoud Ahmadinejad laughed off the possibility of an Israeli attack on Iran and insisted Tehran is “ready to defend” itself.