WASHINGTON, May 25 (UPI) -- Energy Secretary Bill Richardson says the problems of lax security at national nuclear weapons laboratories have been corrected. Responding to a special House committee report on Chinese espionage that was critical of lab security, Richardson said today his department has moved aggressively to correct problems that stretch back some 30 years. Richardson said the committee has ``produced an in-depth report that underscores the importance of the aggressive actions we have taken to strengthen counterintelligence and security at the national laboratories.'' He added, however, ``President Clinton ordered wholesale counterintelligence improvements at the Department of Energy in February 1998, before the Cox committee was even formed.'' And he also poured cold water on some of the committee's conclusions. Richardson also cautioned against ``over-sentationalizing the conclusions of the report. Not every allegation is a proven fact.... There is no evidence of a 'wholesale' loss of information. The intelligence community has concluded that classified information obtained by China probably accelerated its program to develop future nuclear weapons. But they don't know whether any weapon design documentation or blueprints were acquired'' from U.S. labs, ``and they can't determine the full extent of weapons information obtained.'' Richardson said, ``It is also important to note that despite the potential loss, the United States still maintains an overwhleming nuclear weapons superiority. We have some 6,000 strategic nuclear warheads, whereas China has less than two dozen strategic missiles.''  