I don't know the specifics of this particular plant's security procedures, but it's unlikely he was in a position to do any significant damage to the plant, and his clearance process was likely much less involved than would be for someone who is in a position to do real damage.
I'm genuinely surprised. Too bad we can't interview him. He certainly doesn't fit the profile of the typical jihadist.
Still I stand by my point. Attacking a nuclear power-plant as an inside job is virtually impossible. There's enough physical security and mechanical fail-safes that nothing bad would happen.
Edit: also what the other guy said. He was a weld inspector. Nevermind, everything makes sense now. Sensational scare article is sensational.
