Just going to go ahead and steal this one from King of Zembla:

Dzakovic was in charge of the FAA's Red Team -- a small, elite squad who conducted mock undercover raids as terrorists and hijackers. It probed vulnerable areas inside airports. With surprising ease and frequency during routine tests, members of his team slipped bombs, guns and knives onto aircraft.

Several days after Sept. 11, 2001, the FAA grounded the Red Team, apparently because it didn't want to be embarrassed by the team's findings. Dzakovic disagreed with this cowardly attempt to bury the truth. And so he took the bold step of filing a whistle-blower disclosure in October 2001 with the Office of Special Counsel, an independent government agency. That document -- the first of its kind by an FAA Security Division employee -- set in motion a lengthy and costly investigation by the inspector general.

One finding of that inquiry, according to Dzakovic, was that FAA security operated in a way that created a "substantial and specific danger to public safety."

But instead of rewarding Dzakovic, the newly formed Transportation Security Administration, which had swallowed the FAA, punished him by reassigning him to an entry-level clerical position behind a desk. He spent months punching holes in paper and putting training binders together for new TSA employees. The counter-terrorism expertise of this valuable 14-year FAA veteran was stupidly wasted. He wanted to spend the rest of his career fighting bad guys, but his government bosses thought that wasn't such a good idea after he became a whistle-blower . . . .

...
"Many of the FAA bureaucrats that actively thwarted improvements in security prior to 9/11 have been promoted by FAA or the Transportation Security Administration. I have never in my life been around more gutless, inept and outright ignorant people than I have at TSA headquarters, most of whom are in management. You combine this atmosphere with absolutely no accountability and it is a very dangerous formula for a repeat of 9/11.

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