This'll turn out well, I'm sure

New technology always seems to have impact outside the area its' inventors or popularizers envisage. This one, for example, is being introduced as a tool for quickly and remotely telling "whether someone is dead or alive on the battlefield." It also has other potentialities:

Figuring out whether detected heart rates give a reasonable cop excuse for coming in shooting is one of those legal and strategic conundrums we'll be sweating over in the magically transparent world of tomorrow.

Oh yeah, this is gonna go just great . . .