Marijuana growers are using California’s Medical Marijuana program as a cover to grow the drug.

From the New York Times:

Medical marijuana was legalized under state law by California voters in 1996, and since then 11 other states have followed, even though federal law still bans the sale of any marijuana. But some frustrated residents and law enforcement officials say the California law has increasingly and unintentionally provided legal cover for large-scale marijuana growers — and the problems such big-money operations can attract.

“It’s a clear shield for commercial operations,” said Mike Sweeney, 60, a supporter of both medical marijuana and a local ballot measure on June 3 that called for new limits on the drug in Mendocino. “And we don’t want those here.”