1.   Arms controllers say the growing complexity of the situation calls for a global ban on anti-satellite testing.

2.   Arms controllers worry that even without real nuclear explosions, weapons scientists will make remarkable progress, using new tools like computer-simulated bomb blasts.

3.   But arms controllers argue that the United States now risks becoming not only the architect of unnecessary weapons but also a nuclear hypocrite in the eyes of the world.

4.   But arms controllers increasingly worry that today it is being undercut by the march of technology and a scientific elite eager for new challenges.

5.   For generations, arms controllers advocating a global ban on the underground testing of nuclear weapons have said that such a treaty could be policed by seismometers.

6.   Liberals charge that bomb designers are getting far more than they need as a payoff for supporting the Comprehensive Test Ban Treaty, a holy grail of arms controllers.

7.   The Pentagon wants higher levels while some arms controllers are pushing for zero.

8.   Their creative work has sparked hot debate among arms controllers and Government officials over whether the secret labors undermine the nuclear test ban treaty.