The number of US babies born with signs of opiate drug withdrawal has tripled over a decade. That's according to a new study released online Monday in the Journal of the American Medical Association. (April 30) Subscribe to the Associated Press: bit.ly/APYouTube Download AP Mobile: www.ap.org/mobile/ Associated Press on Facebook: apne.ws/c7lQTV Associated Press on Twitter: apne.ws/bTquhb Associated Press on Google+: bit.ly/zuTKBL