The Chinese surveillance balloon was first reported to be near a nuclear missile silo near Great Falls, Montana. I had a look on Google maps and saw something interesting.
By zooming all the way out, I saw that missiles launched from there to attack China would go right over my house. So would missiles from China aimed at the Montana silo.
But don't worry. The Americans would try to shoot them down.
Another interesting thing I found online is that Amazon sells Geiger counters.