The January midair collision near Ronald Reagan Washington National Airport, which killed 67 people, is the topic of a three-day investigative hearing by the National Transportation Safety Board.

One of the strongest earthquakes ever recorded struck Russia's Far East early Wednesday, sending tsunami waves into Japan and Hawaii and across the Pacific.

The gunman accused of killing four people in New York City suspected he had chronic traumatic encephalopathy, or CTE — a degenerative brain disease often associated with football players.