05/21/2007 ET Congressional Democrats are taking aim at the decade-old alliance between the United States and Colombia, Washington's staunchest ally in Latin America. For sheer strategic myopia, it would be hard to beat this act of folly. Even as much of Latin America moves left, Colombia's commendably democratic government continues to share the core U.S. values in the region - fighting terrorism, combating drug trafficking and liberalizing trade. Compare that agenda with the yanqui-bashing alliance pursued by Colombia's neighbor and rival, Venezuela, under leftist demagogue Hugo Chavez. While Chavez makes common cause with the Castro brothers in Cuba and courts...