The U.S. defense community is planning the weapons and the strategy necessary for a war in space. Critics argue that such preparations are unnecessary and destabilizing.

U.S. officials downplay a recent Chinese threat to retaliate with nuclear weapons if the U.S. gets involved in a Taiwan Strait situation.

Recent U.S. food assistance to Russia and North Korea has been based on national security calculations rather than humanitarian concerns.

Recent U.S. food assistance to Russia and North Korea has been based on national security calculations rather than humanitarian concerns.

The Bush administration is exploring the possibility of expanding the nascent U.S. missile-defense system into Eastern Europe as a protection against an attack from the Middle East.