Australian Greens Leader Christine Milne has called on the Prime Minister to tighten Australian gun control laws following the Newtown massacre in the United States.
"The Prime Minister needs to finish the job John Howard began after Port Arthur," Senator Milne said.
Following tri-partisan cooperation led by the Greens in Tasmania, John Howard helped ban semi-automatic rifles. However semi-automatic hand guns remained.
"Hands guns like the ones reported to be carried by the shooter in Newtown, Connecticut, are available in Australia.