According to federal law, cannibis is illigal everywhere in the US.At least in certain circumstances (and states) it can legally possible for citizens from in the U.S. to grow, and smoke it to relieve pain etc. As complicated as it probably gets, it's still leaps and bounds ahead of the UK.
According to various state laws you can posess and smoke if you have a medical card.
According to Alaska State law I can legally posess and smoke in my own home.
- - But - -
Even though it is legal by Alaska state law, a DEA agent (Federal agent) could arrest me in my own home for smoking.
Fucking retarded ain't it?