I heard a little bit of Limbaugh's show during lunch today.  His audience was full of hand-wringing over the handshake.  Meanwhile, a quick search in Google shows Republican presidents shaking hands with actual Communist dictators (Nixon with Mao and Reagan with two or three Russian leaders from the 80's). 

Oh . . . and one genius caller lumped in Ahmadinijad with "Communist dictators," ignoring the fact that he was elected (Khameini, the lead cleric, is closer to a dictator) and the fact that the Iranians are most certainly NOT Marxists.