re: #175 JC1

A terrorist highjacking/stealing an 18 wheeler hauling fuel and crashing it into the target would do way more damage than flying toys.

Physics, rather than fear of terrorism, will be the limiting factor.

Flying could be way safer than driving. When driving you’re limited to a few lanes on the ground. Flying opens that up considerably.

Try and drive an 18-wheeler into a nuke plant, and see how far you get.
Flying cars filled with explosives are not toys.