An Israeli woman works on marijuana plants at Tikkun Olam greenhouse, near the northern Israeli city of Safed, on November 1, 2012, where the company grows medical cannabis. Tikkun Olam company has developed unique strains of the drug without psychoactive effects but with improved anti-inflammatory properties. AFP PHOTO/MENAHEM KAHANA (Photo credit should read MENAHEM KAHANA/AFP/Getty Images)