Failing to make much of an impact thus far in the 2008 GOP race, Rep. Tom Tancredo (R-CO) is dialing up his anti-illegal immigration message with an explosive (literally) new ad depicting a terrorist attack on a shopping mall.

The voice-over track: “There are consequences to open borders beyond the 20 million aliens who have come to take our jobs. Islamic terrorists now freely roam U.S. soil–Jihadists who froth with hate here to do as they have in London, Spain, Russia.”

Following images from recent terrorist attacks, viewers can watch as a man with a hooded sweatshirt leaves a bomb-filled backpack near a bench at a generic shopping mall.

The narrator then warns, “The price we pay for spineless politicians who refuse to defend our borders against those who come to kill.”

The ad concludes with the sound of an explosion and a fade to black screen with the text, “Tancredo…before it’s too late.”

Watch it here:

Of course, this is not the first time a candidate has tried to use the prospect of an imminent attack into frighten voters into casting their ballots for them. Check out the infamous Lyndon Johnson “Daisy ad,” which only aired once–on September 7, 1964–but received major media attention and reinforced the argument to voters that Republican Barry Goldwater would be trigger-happy regarding the use of atomic weapons: