The Venice Beach Care Center medical marijuana dispensary is pictured in Los Angeles, California February 6, 2013. The Venice Beach Care Center, is one of three medical marijuana shops in Los Angeles that are staffed by dues-paying union members. Another 49 dispensaries in the city plan to enter into labor agreements with the United Food and Commercial Workers union (UFCW) this year, the union says. REUTERS/Jonathan Alcorn (UNITED STATES - Tags: DRUGS SOCIETY HEALTH BUSINESS EMPLOYMENT)