Marijuana use surpasses cigarette smoking in US, study findsA new federal study found that marijuana use in the United States has surpassed cigarette smoking. A new federal study found that marijuana use in the United States has surpassed cigarette smoking. A new federal study found that marijuana use in the United States has surpassed cigarette smoking. A new federal study found that marijuana use in the United States has surpassed cigarette smoking. A new federal study found that marijuana use in the United States has surpassed cigarette smoking.