When Congressman Joe Wilson (R-SC) shouted, “You lie!” in the middle of President Barack Obama’s address to both houses of Congress, his outburst opened up a far bigger can of worms than mere accusations of partisanship or even rudeness. A certain faction on the left took less than 24 hours to insist that Wilson couldn’t possibly have been calling the president a liar because he was lying, but rather was calling him a liar because he was black.