lets be honest, the toughest SOB holding a US passport is Jimmy Carter and it isn't close to close, one of the few people in history who went into a nuclear reactor came back out and nothing at all happened and now dude has lasted over a year in hospice, literal brain cancer cannot beat this guy
There actually is some chance that progress was made on pancreatic cancer diagnosis and treatment with Jimmy Carter’s blood and dna.
www.nytimes.com/2007/08/07/h...