Voters in Washington state and Colorado have approved some of the world's most relaxed marijuana laws, and the chief of the UN drug watchdog agency isn't happy about it. Raymond Yans, head of the International Narcotics Control Board, tells the AP he hopes Attorney General Eric Holder "will take all the necessary measures" to keep marijuana use illegal in every state. The states, which voted to legalize marijuana for recreational use earlier this month, are bound for a legal showdown with federal authorities though not with Yans' agency, which has no enforcement ability. (More marijuana stories.)