Increasing number of females and nancy boys in the FBI and law enforcement = need to scew the methodology to justify smaller, lighter and less recoiling handguns and cartridges. The whole examination of pathology, medical practictioners results as a justification to me read as just so much more waffle.

Also a lighter cartridge means less training and less practice is needed for less dollars of expenditure. Justifying under training and less than proper volumes of practice.

My cynical mind.

BTW if you take a .38 or 9mm "super duper modern" bullet and compare it to a .40 or .45 "super duper modern" bullet at a similar velocity, the larger calibre MUST be more effective.

But it seems only the super duper modern 9mm bullets have improved if you take the gist of the article and justification.