* More like, may have contributed to a reduction in violence since the 11th-century. While it’s possible that some form of genetic pacification might work to r

* More like, may have contributed to a reduction in violence since the 11th-century. While it’s possible that some form of genetic pacification might work to reduce deviant behavior over centuries to come, the concept lacks relevance in a discussion about criminality in a nation where violent crime has fallen for decades and high rates of incarceration are more readily explained by a host of factors far less abstract than genetics.