On Tue, 10 Nov 2015 16:57:09 -0500, "Mr. Luddite"
wrote:

Common sense dictates that being able to see your neighbor's backyard
from your house or property is *not* a violation of his"reasonable
expectation of privacy". Flying a remotely controlled, camera equipped
drone *over* your neighbor's property and video recording whatever is
happening certainly is, IMO.

The question is, what if you are still over your own property or the
street, shooting an oblique into the neighbor's lot.
They have to be careful or you will be telling the property appraiser
that their aerials are illegal.