Remember the "Weatherman" (AKA "the Weathermen" or "Weather Underground Organization"?  They were home grown anti-USA terrorist bombers who blew up many goverment targets in the 1960's and 1970's.  Two of their leaders, the still unrepentant Bill Ayers and Bernardine Dohrn, are good friends with Barack Obama from his days in Chicago politics.  When a recent book pointed out this connection, the Obama campaign issued a rebutal that called Ayers and Dohrn "Members of the establishment with ties to the Mayor".  Other than showing how messed up Chicago politics is, this does not seem to be a good answer to Obama being friends with unrepentant terrorists.