Guess which countries boycotted negotiations to ban nuclear weapons.

Ethan Nadelmann is moving on after decades of helping change U.S. drug laws. He's confident the Trump administration can't destroy his legacy.

America is in the midst of a dramatic shift in public opinion, one which began at least a decade ago and shows no signs of reversing any time soon. The concept of fully legalizing marijuana for adult recreational use must now actually be considered the mainstream opinion in America.