This ban has more to do with how much geodetic data is being transmitted to China and less to do with the actual drone technology. People flying DJI drones are mapping the US on China's behalf, and that too with great fidelity.
https://news.ycombinator.com/item?id=43073808
It's not necessarily better than 6 inches. But it's pretty decent, down to 0.3m, roughly 12 inches.
> even if they could do better I would question the utility of higher resolution data for anything military related.
Oh boy. Suffice to say that it definitely is useful for many things military related.
Can you give a single example?
It's not like weapons targeting needs to have high precision data. Robotics or drone planning definitely doesn't need high precision data. Nah. You're right. Higher precision data is absolutely useless to everything.
> "People flying DJI drones are mapping the US"