(CNN) -- Following the liberal footsteps of Colorado and Washington, Alaska, Oregon and the District of Columbia passed ballot initiatives to legalize marijuana this month. Florida's medical marijuana law failed, but only because as a constitutional amendment it needed 60% support; 58% voted in favor of it. In 2016, another five to 10 states will likely consider legalization -- possibly Arizona, California, Delaware, Hawaii, Maine, Maryland, Massachusetts, Montana, Nevada, New York, Rhode Island and Vermont. It's not surprising. Opinion polls show that marijuana legalization now commands majority support across the country. Do these developments mean that full legalization is inevitable?
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Alaska, Oregon and District of Columbia recently legalized marijuana
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Jeffrey Miron: State legalization is not enough; what U.S. needs is federal legalization
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He says federal prohibition is a problem; doctors and researchers are afraid to use it
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Miron: Given marijuana's potential in medicine, Congress should make it legal
The main impact of @placeholder's legalization has been that marijuana users can now purchase and use with less worry about harsh legal ramifications.