The marijuana debate

Associated Press
FILE - In this Nov. 6, 2012 file photo, Amanda Jetter celebrates along with others attending an Amendment 64 watch party in a bar after a local television station announced the marijuana amendment's passage, in Denver, Colo. Tuesday's presidential election results showed the American voting public has not only become more permanently diverse in its makeup, but also in its mindset. Voters also altered the course of U.S. social policy, voting in Maine and Maryland to approve same-sex marriage, while Washington state and Colorado voted to legalize recreational use of marijuana.  (AP Photo/Brennan Linsley, File)

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Pot smokers formally gained the right to light up in Colorado on Dec. 10 as Governor John Hickenlooper signed into effect a controversial ballot measure legalizing marijuana for adult recreational use in what proponents hailed as a "historic day."

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