Germ Weapons: In Soviet Past Or in the New Russia's Future?
Belated discovery of research on new and deadlier generation of germ warfare weapons by Russian military officers in Kazakhstan just as Soviet Union was ending its confrontation with West in 1980's fuels fierce debate in Washington over whether military is heeding Pres Boris Yeltsin's 1992 order to abandon germ warfare; discovery of animal testing of highly contagious Marburg virus at remote laboratory complex near Stepnogorsk in final days of cold war has led Clinton Administration officials and Republicans in Congress to assert that Russia is still secretly researching germ weapons; US officials say while there is scant hard evidence to support suspicions, Moscow's reluctance to open up military bases is ominous sign; skeptics of Western aid programs that pay salaries to former Russian germ scientists to thwart their recruitment by rogue or terrorist states say Moscow's lies about germ warfare program in past make trust and cooperation impossible; note Yeltsin has banned Russian experts from discussing any aspect of country's germ history and has retained several generals instrumentsl in Soviet program; worry particularly that research may be quietly proceeding on some of least known Soviet advances, such as 'bio-regulators' or germ compounds capable of controlling human moods, heart rhythms and sleep patterns; supporters of Western programs say while Russia may not be trusted unconditionally, partnership is best chance for verifying Moscow's claim to have renounced germ weapons; photos; map (L)