PITTSBURGH: An Egyptian scientist who claimed his rights were violated when the Department of Energy revoked his security clearance has left the country after 28 years and returned to his native Egypt after losing his federal lawsuit.Moniem El-Ganayni, 57, worked at the Bettis Laboratory, which makes parts for nuclear warships, in suburban Pennsylvania for more than 17 years.He has been a US citizen since 1988.His security clearance was revoked last late year, and he was fired in May.The Energy...