An employee of Good Meds medical cannabis center in Lakewood, Colo., handles a jar of pot. (Credit: Matthew Staver/The Washington Post.)

Over on Post Politics, Aaron Blake rounds up a lot of information on how Americans use and abuse drugs in each state. Blue states like them more than red ones; California and Washington, D.C., have a problem; and red states tend to abuse prescription drugs more. Check out the state-by-state maps over at Post Politics.