As the United States enters its 72nd year of marijuana prohibition, it's time to consider legalizing pot for at least three reasons:

1. The tax revenue and law enforcement savings. A 2005 cost-benefit analysis done by Harvard economist Jeffrey Miron found that legalizing marijuana and taxing it similar to alcohol would generate over $6 billion in new revenue and save nearly $8 billion in direct law enforcement costs. Pot is already the biggest cash crop in many states; bringing it into the open market would pump all sorts of energy into the economy.

1. It's going to happen anyway, so why delay the inevitable? Increasing numbers of Americans realize that pot prohibition is an ineffective and costly policy. A 2009 poll by Zogby found that 52 percent of Americans agreed that marijuana should be taxed and regulated like booze. A Field Poll last year of California residents, who will vote on a legalization ballot initiative in the fall, found that 56 percent wanted legalization. Other polls show historically high percentages favoring legalization. In a world of busted budgets, it's crystal clear that spending time and energy policing marijuana is not worth it.

1. Keep Your Laws Off Our Bodies. Never mind that by virtually every measure, pot is safer and less than disruptive than booze. Pot prohibition in the 1930s was the result of hysteria, not serious threats to society. We own our bodies and should be free to eat, drink, and smoke what we want. And to take responsibility for our actions, whether we're straight or we're stoned.

Approximately 1.07 minutes long. Written and produced by Meredith Bragg and Nick Gillespie, who also hosts.

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