41.   Such scientists have computer access approved and controlled by lab officials.

42.   The Los Alamos nuclear laboratory has been closed since Monday, and lab officials said explosives and radioactive material stored there were protected in fireproof facilities.

43.   U.S. and Russian scientists discussed ways to dispose of plutonium during a visit to a Los Alamos National Laboratory facility, lab officials said today.

44.   Wang said that lab officials have been looking into the treatment of Asian-American employees and have made some promotions in recent months.