71.   But they say some domestic groups have demonstrated the ability to use biological weapons, though not anthrax in particular.

72.   But there was no sign, federal scientists cautioned, that the anthrax seen thus far had the properties of an effective biological weapon.

73.   Butler said that the biological weapons were loaded onto missiles that could be put on mobile launchers and driven away to avoid being hit by bombs.

74.   But Wynn, who has world-dominating plans of his own, arranges for a biological weapon to blanket the planet if his heart ever stops.

75.   But, in the end, it is a unique ethical repugnance, rather than the practical difficulties, that appears to lie behind the shunning of biological weapons.

76.   Butler confirmed earlier reports that his team had evidence that Iraq has loaded biological weapons onto missile warheads.

77.   Casada, an assistant professor in psychology, said the public has been receiving mixed messages about its safety and the threat of biological weapons.

78.   CBS News reported Wednesday that arms inspectors had photographic evidence of experimentation on human beings with biological weapons.

79.   Charges by U.N. inspectors that she tried to dissuade them from provocative missions searching for hidden Iraqi nuclear, chemical and biological weapons plants have provoked anger in Congress.

80.   China, Taiwan and North Korea are commonly cited in congressional testimony and government reports as makers of biological weapons.