The US Air Force dropped manslaughter and assault charges today against a fighter pilot who mistakenly bombed Canadian troops in Afghanistan, killing four soldiers.

The US Air Force has dropped criminal charges against two fighter pilots who mistakenly bombed Canadian troops in Afghanistan last year, killing four.

The Hawaiian masked angelfish, one of the rarest and most sought-after ornamental fish in the world, has been bred in captivity for the first time, the Waikiki Aquarium in Honolulu said.