Associated Press: “Joe Schwartz is a 90-year-old great-grandfather of three who enjoys a few puffs of pot each night before he crawls into bed in the Southern California retirement community he calls home.  The World War II veteran and stroke sufferer smokes the drug to alleviate debilitating nausea and is one of about 150 senior citizens on this sprawling, 18,000-person gated campus who belongs to a thriving – and controversial – medical marijuana collective operating in the middle of one of the largest retirement communities in the United States.”