David Letterman has joined the ranks of both Sasha Baron Cohen and Salman Rushdie (how often do you get to say that?), receiving death threats from an extremist online group in response to a recent joke that an Al Qaeda leader killed in a recent U.S. military strike in Pakistan would be joining Osama bin Laden.
On the Shumukh al-Islam forum, a commenter encouraged fellow members to "cut the tongue of the lowly Jew and shut it forever," continuing that Letterman (who is actually a Protestant), "showed his evil nature and deep hatred for Islam and Muslims […] we ask Allah to paralyze his tongue and grant the sincere monotheists his neck."
The FBI is now investigating the threat, and it's probably a safe bet that for his part Letterman won't take this as much more than good monolog fodder. Still, pretty sad and scary. The internet should only be used as a force for good!