From Ryan Lizza's Campaign Blog at The New Republic, describing the newest Bush campaign ad, dubbed by one of their readers as the Muhammed Horton ad:

ANOTHER CAMPAIGN FIRST: Bush's first round of ads became immediately famous for using images of Ground Zero and a flag-draped body being carried away from the rubble of the World Trade Center. His newest spot, "100 Days," might soon become famous for another campaign first. It is the first ad to use the image of a dark-skinned man who is obviously meant to be a terrorist.

The ominous slow-motion footage comes about halfway through the 30-second ad. A female voiceover darkly warns about John Kerry's agenda, charging, "On the war on terror: weaken the Patriot Act used to arrest terrorists and protect America." On the left of the screen flash the words "John Kerry's Plan." On the bottom a red box warns, "Weaken Fight Against Terrorists." If you look closely, on the right side of the screen you can see an airplane taking off.

The center of the screen is filled with three different rectangles of slow-motion video. In the top panel travelers at an airport study the arrivals and departures monitor. In the center panel there is a shadowed image of a person wearing a gas mask. And on the bottom there is a close-up of a swarthy, somewhat sinister-looking man with darting eyes who slowly turns toward the camera. He is clearly the terrorist in this scary montage.

Daily Kos reports the Bush campaign says the terrorist in the ad is not Arab. You decide. We just saw the ad on Fox and think the depicted "terrorist" is clearly Middle Eastern.

Update: Poor Man has the complete story board.