Nothing sly about drones - the area around the river is open on both sides, especially the HK side which is grass for easy observation of people trying to cross

Nothing sly about drones - the area around the river is open on both sides, especially the HK side which is grass for easy observation of people trying to cross illegally (setup decades ago). More sly would be people using OpenGarden to create a community linked by across the 'air gap' of river by powerful hubs on HK side and SZ side. That might actually work.