Colorado Gov. John Hickenlooper speaks to members of the media during a signing ceremony for a bill strengthening Colorado's marijuana packaging requirements, at the Capitol, in Denver, Monday March 17, 2014. Hickenlooper, who signed the bill into law, called it an important measure to make sure minors don’t illegally access marijuana. Behind him, right to left, are state senator and bill co-sponsor Linda Newell, Dr. George Sam Wang, an emergency room physician at Children’s Hospital Colorado, and state rep. and bill co-sponsor Daniel Kagan. (AP Photo/Brennan Linsley)