The Pathfinder badge has to have been the coolest qualification badge,ever.
Even in the 60's the army considered it obsolete,and the only people that got to to to Pathfinder School were West Point graduates,or NCO's who re-enlisted with the understanding they would be sent to Pathfinder School.
I know because I tried to go in the mid-60's and the company SGM explained to me why I couldn't.