How do I protect my house from the X-ray vans?

Lead lined walls would work well, they absorb back scatter. Get at least .5 lead equivalency..

tinfoil hats, unbeknown to most people, also protect the person's surroundings from magic X-ray vans. You are advised to use the heavy duty style, the normal hats are not as effective. You want the kind with at least 3 layers.

If you really want privacy you probably ought to start by getting rid of your computer and staying off the internet.

By all means, lead line your home, Start with your hat.

Make yourself a tin-foil hat. All the liberals wear them at home when, especially when they drink koolaide.

yea, if u want cancer in a couple years