The number of students killed or injured by gunfire while at schools is increasing. The National Rifle Association, the nation's powerful gun lobby, has a gun safety program; however, children's advocates say stricter gun-control laws are necessary. Briefly cites 24 gun incidents and describes 4 semiautomatic pistols that were among the firearms…

In school systems with a zero-tolerance policy, principals must recommend that students who carry weapons on campus be expelled. Some critics say zero-tolerance policies do not allow enough room for exceptions. Describes the Gun-Free Schools Act. (MLF)