Not to stray too far from my original purpose(HOW to find out if he truly is a nuclear physicist), I though you might find a quote about him interesting.
Again. Dr. Linus Pauling was a brilliant scientist in his field. When he decided to step outside his field, he strode into the public domain and into uncharted waters.
Is Ruehl the same way? Truly a scientists who happens to hold some unconventional and unsupportable views?
He’s just like you said. Pretty slick guy. He couched his comments with “probably…perhaps…likely” etc.
Again. How do I find out if he has a degree? Although, I now believe he does, having listened to him He’s just an acomplished entertainer. Geraldo is a lawyer, after all.