[AP] TENNESSEE - Feds disrupt skinhead plot to assassinate Obama

"Two white supremacists allegedly plotted to go on a national killing spree, shooting and decapitating black people and ultimately targeting Democratic presidential candidate Barack Obama, federal authorities said Monday"

http://ap.google.com/article/ALeqM5jsCEnrVzDQoU5tg63njLNy0UTDNAD94346BG0

See also http://www.reuters.com/article/vcCandidateFeed7/idUSTRE49Q7KJ20081027