Prop. 203, the Arizona Medical Marijuana Act, goes into effect today. This means the state health department has until April 16 to finish its rule-making process, two weeks more than it had expected. The Arizona Department of Health Services will publish the first draft of its rules Friday, kicking off a public-comment period.

With still two weeks left in 2010, Ciudad Juárez is setting a new record in the number of drug prohibition war killings.

Exemplifying the failure of prohibition, New Zealand has seen a dramatic increase in cocaine smuggling in recent months, Customs says, and it looks like an attempt by figures in South America to establish a syndicate there.

Willie Nelson has long been an outspoken activist, so it was no big surprise that soon after his recent arrest for marijuana possession the country music legend and pot aficionado was calling for a national movement to end the U.S. government’s destructive crusade against cannabis. But if Nelson wants to help end pot prohibition, he can do more than inspire the push for reform -- he can help lead it. And one relatively easy way he can do so is by hosting a benefit concert next year to draw attention to the evils of the drug war, using his iconic pop culture status to raise money for those organizations and people that are working to make the dream of reform a reality. A benefit concert next year would be particularly well timed, with the question of whether to legalize pot possibly being put to Washingtonians as soon as next fall and with California and Colorado voters likely weighing in on ballot initiatives of their own in 2012.

Dark imagery associated with the Mexican drug prohibition war, including images of the unofficial patron saints of death and smuggling, are showing up north of the border, a sign of the drug trafficking organizations' growing influence among American smuggling networks, a U.S. marshal said. Images of the skeletal black-robed figure of Santa Muerte, the Death Saint, are showing up in areas that don't have large Mexican populations, said Robert Almonte. He is traveling the country instructing law enforcement officials about Mexican folk icons associated with the drug prohibition war, hoping to raise "red flags so they will know that if they see some of this, they will be more cautious."

The Washington Department of Revenue has launched a statewide effort to collect sales tax from medical marijuana dispensaries - even as some prosecutors and the Health Department maintain such dispensaries are illegal. Spokesman Mike Gowrylow said that the Revenue Department mailed letters to 90 dispensaries and related organizations on Friday, insisting that medical marijuana is not exempt from state sales tax and that dispensaries must collect that money and turn it over to the state. The letter said dispensaries must also pay the state business and occupation tax.