[Pontiac]

I was originally thinking they managed to sneak a small amount of Semtex into their devices but what if there is a way you can send a signal that will make the battery overheat and blow up?

If you short a fully charged lithium battery it will almost certainly blow up. But I would doubt that you could count on it killing the person holding or wearing it.

You would have to add a circuit to the pager that shorted the battery and have some programing that closed that circuit when it got a page from a specific number.

You might be able to use the battery as a detonator to a small Semtex charge to make it more deadly.

[Harmless Teddy Bear]

So I was not TOTALLY off base.

Just real unlikely.