Banks can use cash from legal pot dealers

A young man lights a marijuana cigarette during a demonstration demanding a new law on cannabis in Montevideo on May 8, 2013. Lawmakers in Uruguay are studying a bill to legalize the cultivation of marijuana and allow limited personal consumption of it -- which if passed, will have authorities controlling its quality and the amount used. With the bill, which is supported by President Jose Mujica, the government wants to end drug-related violent crime which in recent years has emerged for the first time in the South American nation. AFP PHOTO/Pablo PORCIUNCULA (Photo credit should read PABLO PORCIUNCULA/AFP/Getty Images)

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    Banks can use cash from legal pot dealers

The U.S treasury will now allow banks to take money from legal marijuana dealers. CNN's Evan Perez reports.