And you're the one who contends that his contention is "incontrovertible evidence of the long term damaging effect of pot smoke." So where's your evidence for your contention?
It's obvious from his statement, but let me spell it out for you anyway.....
He says he smoked pot 30 years ago and he believes (totally without scriptural support)that it's unChristian to lock people up for breaking the law. He's an electrical engineer so he's not stupid so his wrinkled theology must be due to the long term effects of cannabis.