CARACAS, Venezuela - Venezuela's vice president derided Sen. John McCain (news, bio, voting record) for suggesting that "wackos" run the South American country, saying Monday that the United States should focus on its own problems. Jose Vicente Rangel was responding to McCain's statement on Sunday that America must explore alternative energy sources to avoid depending onIran or "wackos" in Venezuela — apparently a reference to Venezuelan President Hugo Chavez. "It looks like they have nothing else to do in the United States," Rangel said, adding that the Americans have "so many problems, 40 million poor people, 30 million drug users,...