President Obama probably didn't anticipate that his brief dismissal of marijuana legalization during the online town hall would light up a potent movement of support for decriminalization.

The fact that he even addressed such a controversial and oft-ignored topic impressed some. But the way he seemed to deride the question angered manywho quickly expressed their dissent online in website comments, on blogs and throughout social networks.

"There was one question that was voted on that ranked fairly high and that was whether legalizing marijuana would improve the economy and job creation," the president said during the town hall, amongst a thunder of laughter from the crowd. "And I don't know what this says about the online audience." More laughter.

"The answer is, no, I don't think that is a good strategy to grow our economy," Obama said.

No further explanation given. Next question.

His short response was not only disconcerting for marijuana supporters but also a bit perplexing. After all, Obama called for marijuana decriminalization during ...