First I've heard of it, but then again, I can't read every newspaper or site every day. Anyway, the New York Times is reporting that charges have been laid against US citizen Ahmed Omar Abu Ali for plotting to assassinate Bush. (subscription only)

Ahmed Omar Abu Ali, 23, a U.S. citizen, made an initial appearance Tuesday in U.S. District Court but did not enter a plea. He contended that he was tortured while detained in Saudi Arabia since June of 2003 and offered through his lawyer to show the judge his scars.

The federal indictment said that in 2002 and 2003 Abu Ali and an unidentified co-conspirator discussed plans for Abu Ali to assassinate Bush. They discussed two scenarios, the indictment said, one in which Abu Ali "would get close enough to the president to shoot him on the street" and, alternatively, "an operation in which Abu Ali would detonate a car bomb."

The BBC also provides the story, without requiring a subscription. It is apparently "breaking news".

And from FOX:

According to the indictment, Abu Ali obtained a religious blessing from another unidentified co-conspirator to assassinate the president. One of the unidentified co-conspirators in the plot is among 19 people the Saudi government said in 2003 was seeking to launch terror attacks in that country, according to the indictment.

More than 100 supporters of Abu Ali crowded the courtroom Tuesday and laughed when the charge was read aloud alleging that he conspired to assassinate Bush.

...because it's funny, ya know, killing the president. I'm sure we'll all be watching to see how this story unfolds.