Communities like Aurora , Aurora , Newtown on front line of gun control debate . The right to bear arms is enshrined in the Constitution of the United States . Gun controls have been tightened across Canada after incidents such as shooting . American-style gun culture has taken hold in only a few pockets of Australian society -- most notably among the crime gangs operating in the two biggest cities , Sydney and Melbourne . Reports of public revulsion against Port Arthur massacre led to stricter controls in Australia .
Communities like Aurora , Aurora , Newtown on front line of gun control debate . The right to bear arms is enshrined in the Constitution of the United States . Gun controls have been tightened across Canada after incidents such as shooting . Reports of public revulsion against Port Arthur massacre led to stricter controls in Australia .