FPV is 'first-person view', where an rc pilot has a camera in the aircraft and flies the plane wearing glasses or using a computer by reference to the camera viewpoint. Google would explain it better.
I'm sorry and I must agree with the majority of the people on here
'Agree with the majority without question, conforrm at all costs', doesn't sound like the America I care to live in. Thank God it's not and we have the freedom to choose, to experiment, and even to disagree. History has shown many times that naysayers are frequently wrong. It's a good thing the Wrights didn't listen to their detractors.
There are planes flying overhead that occasionally drop blue ice, tires, and even flight controls like flaps, and no one hollers about 'the sky is falling'. A sub-1lb. foamy can do very slight damage, period. That's just a very weak argument.
As far as invasion/expectation of privacy, we're all going to find out shortly about where those lines are thanks to government drone policy, and most won't like it. I'll bet the same naysayers will buckle and won't say a word for fear of the gov't.
The technology is here, the innovators will continue to find new ways to implement it.
It's called Progress.