The International Narcotics Control Board has warned the USA that states that allow the use of cannabis will breach the international treaties that the USA has signed.
The Board is charged with monitoring the compliance with all international conventions on narcotic drugs.
Cannabis poses a great threat to public health particularly with the stronger and more dangerous modern cannabis strains.
The Board has requested the federal government of the United States to oppose cannabis use in any state that contravenes its international obligations.
(Source: International Narcotics Control Board 15 November 2012 at www.incb.org
Australian federal, state and territory governments are also bound by the same international conventions as the USA.
The purpose of the drug conventions is to reduce demand for illicit drugs like cannabis so as to cut off funds to the international drug criminals.
But by reducing the number of cannabis users, governments benefit from reduced health costs, better border protection and a safer community from drug impaired accidents.
As well, the mental health problems of Australians will improve as less psychosis from cannabis use reduces with the reduction of users.
Cannabis users need rehabilitation to get them free of their addiction and this is what international drug conventions are designed to achieve.