Apparently there are now documents showing that the U.S. knew about the plot to overthrow Hugo Chavez of Venezuela, but did nothing to warn him. But see, this is apparently just a result of the CIA's hitherto unheralded reticence to take actions that might somehow affect other governments. No, really. You should prepare yourself before reading the following paragraph (swallow any fluids, be sure you're not in a place that requires quiet, etc):
"The CIA was simply doing what it is we do, in terms of analyzing events and providing policy-makers with our best estimate of the events as they unfold," said the spokeswoman, who declined to be named. She added that alerting Chávez to the impending coup "would suggest we would meddle in the affairs of another nation."