These academic arguments rapidly degrade. Whether you like M&S or Fackler, Roberts or Wolberg every one of them has or had an agenda, as such their "data" is questionable. Fackler was fired by the FBI after they saw smoke and mirrors.
I also like to use anecdotal data provided by police departments in after action reports. No data set is perfect. Gelatin is a great tool if used correctly with a control. Every valid scientific experiment has a control, the experimental data cannot stand by itself.
My rifle and pistol are tools, I am the weapon.