This is a huge problem developing around the world in recent times.
Thermal Imaging technology.
Essentially it lets you see heat signatures, even through walls.
You can buy some off the market these days for just a few thousand dollars. Just about ANYONE can get these devices now!
And then you can :
Watch your neighbors doing private things through the walls.
A pervert's paradise
is unfolding before us!
But have NO FEAR people, there are Countermeasures
we can take to protect ourselves from being watched by sick minded neighbors.
Countermeasures to prevent being spied on by Thermal Imaging
Make sure your walls have sufficient modern insulation, as this can scatter or absorb the infrared radiation waves.
2) Double or triple glaze your windows, as this helps scatter IR waves.
3)Put up blankets around your windows to help diffuse the waves.
4) Using aluminum foil while shining bright lights on it(or even I guess point your portable heater on it) to raise it's overall temperature should
also cause troubles for anyone trying to peek in.
Essentially there are two main components to protect yourself from thermal spies.
A) Reflecting-diffusing waves with shielding/insulation
B) Using other heat sources to mask your heat (or confuse the spy).
Here is some further info on the subject for those interested in developing protections against this new and emerging threat.
Apparently Thermal imaging countermeasures are a big issue going on in the Afghanistan/Iraq wars currently right now. The insurgents are always
developing new methods of hiding from them.
If you can think of more effective countermeasures to protect us from Thermal spies, ADD Them here PLZ!! TY