The tragic mass shooting at the Sikh temple in Wisconsin, coming just a few days after the tragic mass shooting at the theater in Colorado, continues a deeply disturbing American trend.
Since 1976, the U.S. has averaged 20 mass shootings a year – including 30 in 2003.
Why is America such a violent place? Why are we experiencing so many mass shootings? Is this sort of tragedy embedded in our DNA? What should we be doing about it?