Hide in Plane Sight Family of Possible 727 Pilot: "He Is Not a Terrorist" W A S H I N G T O N, June 18 - While international authorities continue their search for a missing jetliner, fearful that it could be used in a terror attack, the family of the American believed to have been piloting the aircraft worries about his fate. Workers at Luanda Airport in Angola watched dumbfounded on May 25 as a Boeing 727 taxied down the runway and took off - without permission. The plane - which ABCNEWS has learned was refitted to haul...