Trap your heat

 

The most invasive method of seeing into a building is infrared. Sophisticated infrared cameras like those mounted on the Predator can see through walls and differentiate heat signatures, identifying people, computers, fireplaces, etc. Luckily, infrared is also fairly easily defeated. Flexible, inexpensive IR-blocking insulation materials are abundantly available online. If you can line the interiors of your walls and ceiling with these materials, not even the most powerful military-grade infrared sensors will be able to see what’s going on in your house.

The downside is that in the event the government does start using Predators or similar machines to spy on civilians, your house will stand out as a cold spot. They won’t know what you’re hiding, but they’ll be certain you’re hiding something.

When you absolutely must head outside, take a survival blanket. Keeping yourself as covered as possible by one of these compact, light sheets will reduce your infrared profile to the absolute minimum. At night, moving in an unpredictable fashion and keeping yourself covered by a heat-reflective material will make you very difficult to follow. At least from the air. Running from bush to bush wearing a silver cape will make you much easier to follow on the ground.