The Energy Department said yesterday it is working to improve nuclear weapons laboratory security by implementing most of the recommendations advanced in a new report that sharply criticizes DOE's policies. The Energy Department chartered the 18-month Center for Strategic and International Studies review of DOE science and security procedures, also released yesterday. "The department has begun to implement 39 of the 45 commission recommendations," Energy Secretary Spencer Abraham said in a DOE release. The other recommendations are still under review,...