Michael Chertoff was the second Secretary of Homeland Security. He previously served as the Assistant Attorney General for the Criminal Division at the Department of Justice. As Assistant Attorney General, he oversaw the investigation of the 9/11 terrorist attacks. He also formed the Enron Task Force. He is currently senior of counsel for Covington & Burling LLP's Washington, DC office and a member of the White Collar Defense and Investigations practice group.

Demand greater government vigilance to prevent and protect against major attacks. And don’t assume that a dearth of successful terror strikes means our work is done.

This year saw a spike in terrorist plots hatched by Americans. Former Homeland Security chief Michael Chertoff assesses the danger—and how we can battle the enemy within.

The former Homeland Security secretary says America has gotten complacent and too worried about image, privacy, and the state of the airline industry. Christmas was a wakeup call.

Michael Chertoff, former Homeland Security director, marks the fourth anniversary of the New Orleans devastation by looking at the lessons learned that are already preventing future tragedies.

As Secretary of Homeland Security, Michael Chertoff traveled the globe, but he prefers to see everything on foot. From Oregon to Qatar, here are five of his favorite places on earth to run.