Over 70 years ago then Naval Lieutenant James “Jimmy” Carter led a team that walked into a melting nuclear reactor core and shut it down safely. He got dosed with so much radioactivity (10,000x more than what we now consider safe) he pissed radioactive whizz for months. Yet he outlived not only his Presidential successor but his successor. He’s the nations oldest President ever, and recently celebrated his 78th wedding anniversary, also a record for a president.