Oregon and Alaska have become the latest US states to legalise recreational marijuana in ballots hailed by supporters as evidence that a national change of policy is underway. Voters in both states approved laws which will permit residents over 21 to grow their own marijuana and establish a legal retail trade. The results, which followed the legalisation of recreational marijuana in Washington state and Colorado two years ago, were cheered by national campaigns as evidence of a gathering movement to challenge federal laws banning the drug. (See also: Election 2014: Americans ready to end the War on Drugs)