The Senate has joined the House in taking aim against plastic guns, whether they be handguns designed to pass through metal detectors or just toys.

By a voice vote, the Senate on Wednesday approved legislation to outlaw the manufacture, sale or possession of handguns made from plastic or other "undetectable" parts that could evade metal detectors.The measure primarily is directed at terrorists and airplane hijackers but was amended to include a requirement that all toy guns have orange plugs in their barrels to clearly identify them as toys.

"This bill is designed to prevent a nightmare from becoming reality," said sponor Sen. Howard Metzenbaum.