CNNW CNN Newsroom February 23, 2012
miguel marquez is joining us. what more can you tell us? >> reporter: it sounds like an accident. they were training late at night. it may have been a live fire exercise. it sounds like there was fairly intense training. these are two that provide close air support for marines on the ground. they were training for afghanistan, as you said. and they trained very, very hard at night and it's possible that it was just an accident. the marines are saying that they collided in the air. obviously something went very wrong during that training, whether it was darkness, dust or dirt that blo...