Why all this fuss over “spy balloons”? Regular commercially available satellite imagery that everyone can view on Google Maps provides all the intelligence anyone needs:
To Find America's Nuclear Missiles, Try Google Maps
I’m sure the “spy” satellites used by various countries will show even greater detail, so no need for anyone to kick up a stink about being “spied on” from a balloon. Especially the US, when they are doing the same thing. There’s probably half a dozen NSA satellites over China photographing every square inch as we speak:
Everything We Know About America's Secret KH-11 Recon Satellites