Critics are condemning JP Morgan boss Jamie Dimon for apologizing to China over a joke he made about the country's communist regime, charging that the billionaire businessman is allowing China to censor Americans. Dimon issued two groveling apologies Wednesday, just one day after saying his firm would outlast China's Communist regime. Speaking at Boston College on Tuesday, Dimon quipped: 'I was just in Hong Kong and I made a joke that the Communist Party is celebrating its hundredth year. So is JP Morgan. I'd make a bet we last longer.' 'I can't say that in China. They probably are listening…