to the buildings around the nation's capital. building that are so swell protected we can't each show you them from the outside. >> this room is called the 9/11 victim's memorial following the prosecution of zacarias moussaoui an admitted al qaeda terrorist we had a number of admits that had been used in the trial and we needed a place to display them to honor the victims of 9/11. we have on the walls here pictures of most of the people who were killed that day. we have artwork that was found at the scene of 9/11. many of them hand drawn pictures by children. it's a sobering way to start work. it's a reminder that the threat still exists. >> the first thing i see when i walk through the door is the memorial. the first thing that makes us think about is the need to be vigilant. the trust that the public has placed in the t.s.a. to secure the skies. you will notice the girder from the 77th floor of the tower of