Surveillance Balloons?

Seems the Chinese have a new surveillance weapon in their, arsenal of surveillance weapons, and they have many. Now among the myriads of cameras, and tracking devices. And they have hundreds of thousands if not millions of cameras in China. Chongqing, a city in China that has existed since 316 BC, has some 2.6 million cameras. They are the most surveilled city in the world. Advanced facial recognition assists this massive endeavor, and computers monitor that vast amount of data...