Mass Shootings and U.S. Politeness: Does 'Minding Your Own Business' Have Deadly Consequences?

The explanation behind U.S. shooting attacks may have more to do with the lost sense of community than with guns per capita.

Yet again, a spate of highly publicized mass murders in the U.S. has lawmakers and citizens scratching their heads. America has the highest rate of guns per capita in the world and our gun-related homicide rate is 15 times higher than average for a wealthy developed nation.