United States August 1, 2017 10:43 am New Research Shows Opioid Use On The Rise A new survey from the National Institute on Drug Abuse reveals in 2015 more than a third of American adults took a prescription painkiller. US & World Videos 1:49 Finalists in math competition hope their model helps ease housing crisis 14:31 @Issue extra: Seth Moulton on pro-Palestinian protests, TikTok and more 2:31 Celtics preparing for pivotal Game 3 against Heat in Miami 1:17 Patriots player visits Franciscan Children's Hospital 5:54 Pro-Palestinian protest taking over college campuses