Strict new gun laws passed after a mass shooting in Australia 20 years ago appear to have prevented any more such attacks there, researchers reported Wednesday. And overall deaths from firearms have fallen since the 1997 law, which banned certain semi-automatic and pump-action weapons and forced owners to sell them back to the government, the team reported in the Journal of the American Medical Association. "Following enactment of gun law reforms in Australia in 1996,... (GunPolicy.org)