If we approach this problem as a knowledge question, we begin to see how some issues are complicated by culture, history and partisan politics.
The late James Brady was injured when shot in the head during an assassination attempt on President Reagan in 1981. He and his wife became powerful advocates for gun control for 33 years.
Although a member of the Republican Party, he and his organisation faced the same frustrations as President Obama on this problem of gun violence in American society.
