The Pew Research Center has a marijuana milestone to report: Most Americans support legalizing pot for the first time in the group's 40 years of polling on the issue. The final tally was 52% to 48%, with the pro-legalization total rising 11 points in just two years. Not surprisingly, the younger the age bracket, the higher the support: About 65% of millennials favor legalization, 54% of Gen X-ers, 50% of baby boomers, and 32% of boomers' elders. All those percentages have increased since 2010.