Gary E. Johnson, a former New Mexico governor and marijuana legalization advocate, is putting out Florida feelers in a possible bid for the presidency in 2012. Johnson's reasons for wanting to legalize marijuana: It's is less harmful than alcohol and the cost of locking up pot smokers exacts too much of a toll on civil liberties and on taxpayers. "I don't drink. I don't smoke pot. But I've drank and I've smoked pot...The big difference between the two is that marijuana is a lot safer than alcohol," said Johnson, an accomplished tri-athlete who once scaled Mount Everest.