Hacker News Reader

I don't care to have xrays randomly fired at me.

The Sun kicks out gobs of x-rays, you're already being exposed to x-rays. One week in the sun is about the same as a chest x-ray.

I don't believe that chest x-rays are nearly so benign. For example, they've found even one x-ray for a toddler increases the chance of brain cancer.

Nor do I trust that those machines in a van are calibrated properly - they may be emitting far more x-rays than they're supposed to. Who'd know?