1. Reveal the shape and extent of the hidden tang in knives like Moras. (I use strong magnets, but FLIR would be better.)
2. Find small game (mice, voles, birds) under cover or snow. (Snowy owls have this ability -- IR sensor pits in their face.)
3. Can you see the outline of a person hiding beside the front door of your house? Right through the wall? (ID possible threat and target?)
4. Determine if a steak (or roast) is rare, medium, or well done?
(Surely you knew that BBQ would come into this eventually. Let 'em eat steak!)
5. Check if a polar bear is skulking around your arctic hut. (Oh wait, don't bother, it's been tried. They are so energy efficient that they barely register, unless you see an open maw with fangs, in which case it's probably too late.)
6. Epilogue: In case you all haven't figured it out yet, I want one!!!