Back when I watched the original NOVA episode, I noticed they showed his UUCP email address. Since I had recorded it on VHS, I paused it so I could write it down. I emailed Cliff, apologetically, but thanking him for the story. I was quite surprised when he replied. Super nice guy, great story well told. It was probably a decade later that I read the book but somehow his narration in the NOVA episode is very personable and real, it just nails the story; and the interview with the actual hacker is great.