Drug overdose deaths passed 50,000 last year in the U.S. -- far more than the 37,000 deaths in road accidents.
"We have received very worrying allegations that hundreds of men have gone missing after crossing into government-controlled areas," a spokesman for UNHCR said.
Obama is concerned Russians will go unpunished since Trump doesn't believe in Russia connection, say officials.
Two German teenagers have been arrested on suspicion of plotting an Islamist attack using firearms on an undisclosed public building.
Prosecutors say Park colluded in the criminal activities of a longtime friend and confidant to manipulate government affairs and extort businesses.