...Okay, how can Asshole Siscon tell whether the satellite is actively viewing them or not? It's ridiculous enough that he could see the satellite with the naked eye, but if you had super sight I could wave that off with suspension of disbelief. Just him knowing he's being watched through a platform he's never even encountered before and which transmits data wirelessly and with electronics... No. He's not even being watched by a presence, a electro-optical device is taking the light in and processing it and sending it off as 1s and 0s to another electronic device thousands of miles away. There's nothing for him to sense or see...
Google Geosynchronous Orbits
Keyhole/Kennen/CRYSTAL/whatever their newest block name reconnaissance satellites are not geosynchronous. Geosynchronous orbits for a multi-billion dollar spy sat that can only cover certain areas of land mass. If you put one above China, you'd need multiple satellites just to cover the entire landmass of the country whereas you could do it with a single satellite in a passing orbit.
The downside is you don't have continuous and non-interrupted satellite coverage, but you're not going to justify spending upwards of $5 billion dollars for a satellite that can only look at the Northeast corridor of China. Even for the NRO and the American government you can't justify costs that high for something that has so little coverage.
Now KH data relay sats
are geosynchronous, but they don't do anything other than receiver/transmit data from the actual spy sats.