10 Years After 9/11, How Safe Is the U.S. From Terror...

Aired: 8/31/2011 | 0:11:28 | Clip
As the 10th anniversary of the Sept. 11 attacks approaches, the state of U.S. security is under scrutiny. Jeffrey Brown discusses how far national security has -- and has not -- improved with 9/11 Commission Chairmen Lee Hamilton and Tom Kean.