United States Senator Claire McCaskill of Missouri today (Wednesday 2) questioned top Pentagon officials on their recently announced policy to open more military jobs to female service members—pointing to the specialized Sapper program at Fort Leonard Wood as a national model. The Sapper course has been open to women since 1999. She asked the panel whether women should register for the Selective Service given that every military job would soon be open to female applicants. Both the Chief of Staff of the Army, General Mark Milley, and the Commandant of the Marine Corps, General Robert Neller agreed with her that eligible women should register…