The House Oversight Committee is demanding the Navy reveal more information about a secret effort to learn more about a brain injury phenomenon among its most elite fighter pilots.

At least one person was killed when a plane veered off the runway and crashed into another plane at Scottsdale Airport in Arizona on Monday afternoon.

Russia's opening gambit ahead of expected peace talks has been laid out in the media, says our Moscow correspondent Ivor Bennett. "There has been a lot of talk about potential meetings and contact ...