Political rivals Ron Paul and Barney Frank are among a group of Representatives introducing a new marijuana reform bill. The proposed legislation would lift the federal ban on pot, leaving legalization up to the states. Sixteen already allow medicinal marijuana. States would also be able to levy taxes on pot, which would help many cash-strapped municipalities. Views on weed are changing. Former world leaders have recommended a policy of decriminalization in the wake of the epic failure of The War on Drugs.Will more politicians come together in the name of legalization?