For several months, a dank 6.5-by-7-foot cell at the Hanoi Hilton served as a crucible that tested the limits of human endurance for retired Air Force Col. Leon Ellis and three of his fellow prisoners.

Strength through endurance: from POW to Ohio farmer (Paul Kari)
A story of survival, endurance, and overcoming obstacles for your Memorial Day. Lt. Col. Paul Kari spent nearly eight years as a POW after being shot down over North Vietnam. What happened afterward also tested his limits. Kari and I walked the land on his pristine spread in West Liberty.

