1.   As long as there are nuclear weapons, the countries that possess them must be confident that their warheads are usable and credible to any potential foe.

2.   Ballistic missiles are only one of several ways a potential foe could subject the United States to nuclear threat or attack.

3.   But since then, Marshall and others say, potential foes have acquired means of attacking such clumps of American forces using satellite imagery and precision-guided missiles.

4.   First, by insisting on full victory and showing that it is prepared to risk its own troops in Afghanistan, Washington is delivering a message to potential foes.

5.   For instance, the seated stable attendant exudes demure serenity, while the larger than life-size figure of the general absolutely glowers at every potential foe.

6.   Military officials worry that if potential foes find out they could take steps to counter the new systems.

7.   One of the biggest advantages any military can have is knowing the location of a potential foe.

8.   Still, administration officials warn against assuming the exact formula used to such great effect in Afghanistan would work against other potential foes, especially Iraq.

9.   The statewide polls help Davis gauge public opinion on pending legislation, his handling of the energy crisis and his potential political foes next year.

10.   The U.S. no longer needs tests to design new warheads, assess the reliability of old warheads or rattle potential foes.