America’s relationship with pot is changing. While the substance is illegal to use or possess on a national level under the Controlled Substances Act, some of the country’s states, territories and the District of Columbia have been passing laws to the contrary, and in very different ways, since 1996.

At the publishing of this story, 11 states, the District of Columbia, Guam and the Northern Mariana Islands have legalized recreational pot, and 33 states, the District of Columbia and four permanently inhabited U.S. territories have legalized pot’s medical use. Other states have moved to decriminalize pot, but not legalize it altogether.

Illinois is one of the latest to legalize recreational use. As a result, its most prominent airports, O’Hare International and Midway, are now equipped with so-called pot amnesty boxes at the end of every security checkpoint. The boxes are in place for travelers who may arrive with cannabis products and don’t want to break the law by flying with them.

“The amnesty boxes are owned by the Department of Aviation here in Chicago and serviced by us at the police department,” says Maggie Huynh, public relations coordinator at the Chicago Police Department. “The boxes are where travelers can safely dispose of cannabis and cannabis products before travel.” [Read More @ The Washington Post]