The mass shooting at the Sandy Hook school in Netown Connecticut, has echoes of other recent fire arms related tragedies in recent years in the US.
There has already been a spate of shootings in the United States this year alone.
US gun laws have created strong lobbies both for and against firearms control.
But for more than 220 years the US constitution's Second Amendment has guaranteed the right to keep and bear arms.
Al Jazeera's Dominic Kane reports.