A young man prepares to smoke at a rally calling for the legalization of marijuana, in Mexico City, Saturday, May 3, 2014. As part of a global day of marches in favor of legalization, more than a ... more 
A young man prepares to smoke at a rally calling for the legalization of marijuana, in Mexico City, Saturday, May 3, 2014. As part of a global day of marches in favor of legalization, more than a thousand people gathered in a Mexico City plaza to smoke and demonstrate in support of legal cannabis. (AP Photo/Rebecca Blackwell) less 
1 / 1
Associated Press | Photo By Rebecca Blackwell
Sat, May 3, 2014 9:33 PM EDT