Republican politicians have several times used the September 11 World Trade Center attacks as a political weapon. This particular ad, though, by Herman Cain, takes the cake. He uses video footage of the tragedy and cobbles them together in a short snuff film in the form of a political ad.
Cain has virtually no shot to win, but he is guilty of perpetuating a really bad meme. Another example of turning a horrible, unspeakable crime and tragedy into a brand name. Another example of 9/11 (TM).
This a few years later remains the most prescient thing said about how 9/11 has been used: