David Letterman Threatened on Jihadist Website [VIDEO]David Letterman Threatened on Jihadist Website [VIDEO]The FBI is investigating a threat made against talk show host David Letterman on a popular Internet destination for radical Muslims.Jade WalkerJade Walker
![David Letterman Threatened on Jihadist Website [VIDEO]](http://townsquare.media/site/154/files/2011/08/dletterman.jpg?w=980&q=75)
