Zzzap can see lingering nuclear radiation

“A lot of people in the military kept expecting North Korea or China to do it,” said Zzzap. “Either nuke themselves or nuke someone else. But they never did.”
“Are you sure?” Madelyn asked.
“Yeah. Even with a small explosion like the one on Honolulu, I’d still be seeing radiation flares from something like that today. Never seen anything.”

Excerpt From Ex-Isle, pg 251
Peter Clines
https://books.apple.com/us/book/ex-isle/id989619017