In another inch forward for Barack Obama's stance on marijuana,
the U.S. president revealed in a new interview that he finds the
drug no more dangerous than alcohol.   However, Obama clarified
his comments, discussing both the societal impact of marijuana
arrests, as well as the legal implications for comparing various
drugs and legalizations.  “If marijuana is fully legalized and
at some point folks say, 'Well, we can come up with a negotiated
dose of cocaine that we can show is not any more harmful than
vodka,' are we open to that? If somebody says, 'We've got a
finely calibrated dose of meth, it isn't going to kill you or
rot your teeth,' are we OK with that?” he said.  The comparison
between marijuana and other recreational substances such as
cigarettes and alcohol is not a new one, with various studies
comparing the health impacts of each. A 2011 study in the
Journal of Psychopharmacology suggested that alcohol was twice
as harmful to users and five times as harmful to others.
Obama's statement comes ju