Now that marijuana is legal in Washington state, Portland, Or., police are offering some helpful advice to local pot users, says the Associated Press: You can go over to Washington to "smoke some weed," a police advisory says, but you might get arrested for driving under the influence if you're pulled over coming home, even on a bike.

As Washington works out the complications of its new law. including the fact that marijuana is still illegal under federal law, neighbors of Washington are watching with curiosity, and perhaps some apprehension. If the federal government doesn't attempt to intervene in the new law, and if Washington state sets up a supply system whose mechanics are yet to be defined, Washington may well become a greater source of pot for users in Oregon and Idaho.