ok Nuke was no problem, see the video below I'm not sure what your experience level with nuke is so i kept it basic. Hope it helps, sorry if I lecture a bit after 17 years of tutorials I can't help it anymore 
https://www.youtube.com/watch?v=jLjFkh1oHfk
From a readers' Q and A column in TV GUIDE: "If we get involved in a nuclear war, would the electromagnetic pulses from exploding bombs damage my videotapes?"