When President Obama travels to Colombia this weekend for the Summit of the Americas, he'll be stepping into a vigorous debate about the drug war that could be awkward for the United States.
Some Latin American leaders, who also happen to be strong U.S. allies, say the American-sponsored war on drugs is failing and that new options need to be considered.
One proposal they want to discuss is legalizing some drugs — a move the U.S. strongly opposes.
