'28 Pages:' A 'Full Measure' special report about the 9/11 attacks

Fourteen years after the Sept. 11 attacks, one of the last, great mysteries surrounding the terrorist attacks on America has yet to be unmasked--parts of the Congressional probe that have been kept secret from the public under two U.S. administrations. Watch the video above for a special report you'll see only as part of the launch our new weekly investigative program: "Full Measure with Sharyl Attkisson."