On shelves at a Humanetics facility in Huron, Ohio, skulls stare from their eyeless sockets, shiny and silver. Around a corner, a rack is filled with squishy, peach-toned arms, legs, torsos and butts.

Forbes contributors publish independent expert analyses and insights. Michael Harley is a noted automotive industry expert and analyst. Earlier this month, U.S. Transportation Secretary Sean P. Duffy ...