It's about projecting aggression.

Researchers at Texas A&M University, for a study published in the Journal of Human Resources, concluded that homicides had increased by 8 percent in the more than 20 states that had passed "castle doctrine" laws, many of which include Stand Your Ground provisions. That equals 600 additional homicides every year in those states, they wrote.

At the same time, however, the researchers found no detectable decrease in burglary, robbery or aggravated assault.

It's about trying to assuage gun-fondlers' insecurities.