Late night talk show host David Letterman has drawn the ire of a Jihadist website.

FOX News Radio's Todd Starnes reports:

The threat - made by a frequent contributor to a Jihadist website has threatened Letterman because of a joke the comic made on his CBS show earlier this summer... urging Muslim followers to "cut the tongue" of Letterman because of the joke made on the June 8th broadcast of "The Late Show with David Letterman."

...the FBI is investigating the threat.