For years, the National Football League has been punishing athletes for using marijuana despite the fact that it is far less harmful than alcohol, a substance widely embraced by the league. Now that the U.S. Justice Department has announced it will allow states to legalize marijuana, the NFL needs to recognize and respect those laws, too. Please sign MPP’s petition to NFL Commissioner Roger Goodell calling on the league to stop punishing players for using marijuana. To draw attention to this important…