21.   They approved legislation to again develop missile defense.

22.   They included strengthening export controls, encouraging the Russians to stop the leakage of their missile or nuclear technology and developing anti-missile defenses.

23.   To former Clinton aides, the subtext seemed to be that Washington would give consultations with Moscow no more than a college try before moving unilaterally to develop defenses.

24.   While the Army maintained an infectious disease laboratory at Fort Detrick, Md., to develop defenses against germ attacks, the CDC kept its distance from the effort.

25.   He said the compromise protects the momentum toward developing workable defenses for both the nation as a whole and for military forces in the field.

26.   It makes a lot of sense to develop defenses to face the true threats.

27.   Russian politicians have been unanimous in assailing the U.S. plan to develop anti-missile defenses, saying the move would violate the ABM treaty.

28.   Researchers there develop defenses against biological weapons.

29.   Robertson said a recent proposal by Russia to join with Europe in developing missile defenses may be a ploy to divide the European allies from America.

30.   Scientists at Fort Detrick develop defenses to biological weapons, but they also have battled outbreaks of Ebola and other exotic diseases around the world.