Senate Scraps Low-Yield Nuke Weapons Ban 2 hours, 32 minutes ago By KEN GUGGENHEIM, Associated Press Writer WASHINGTON - The Senate agreed Tuesday to end a 10-year-old ban on research and development of low-yield nuclear weapons, rejecting Democratic claims that lifting the prohibition would be a step toward nuclear war. A Democratic amendment to keep the ban was defeated in a 51-43 procedural vote. After the vote, Democrats were offering a compromise that would allow research on the weapons to begin, but prohibit their development. The Bush administration's request to lift the research and development ban is part of a...