[quote=Blue Tempest]
It's a simple question really: If there's a story where it's possible to bring people back to life, then does the story lose all sense of tension?
[/quote]
Well, provided life/death follows newtonian laws, then bring them back to life entails either sacrifice, or killing the baddie once and for all.

Which gets wierd if by 'bringing back' actually means 'inhabit host'.