(CNN)  -- Argentina's Supreme Court ruled Tuesday it is unconstitutional to punish an adult for private use of marijuana as long as it doesn't harm anyone else. A recent poll showed 29 percent of Americans believe the best way to deal with marijuana is to legalize it. The unanimous ruling makes Argentina the second Latin American country in the past four days to allow personal use of a formerly illegal drug. The case in question involved five young men who were arrested for having a few marijuana cigarettes in their pockets. Supreme Court Justice Carlos Fayt, who at one time supported laws that make personal use of marijuana illegal, told the state-run Telam news agency that "reality" changed his mind.
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NEW: Argentina court: It's unconstitutional to punish adult for private use of marijuana
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Justice tells state-run news agency "reality" changed his mind
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Mexico enacted law that decriminalizes possessing low quantities of most drugs
"The question," he said Tuesday, "is whether the @placeholder will be open to this new path."