Expecting U-tube to police their network for copyright infringement is like expecting Ford to prevent their cars from being used to rob banks. The only reason the copyright holders are not responsible for this is because they want to offload the work and cost to someone else, AKA maximize profit.
The government has proven that the Constitution is no impediment to their plans. I believe the only thing keeping President Trump from doing half the crazy things he plans, is they are physically impossible or involve other countries that can say no.
It's linking in unknown code. It may be only local today but tomorrow who knows? Is it running an external DLL file or does it bind in the actual code? If it's an external DLL then microsoft can update it through windows update and you'll never know. This sounds like a very nice attack vector, I wonder what the NSA could do with it?
Solving world hunger is a much harder problem than you think. In most of the third world the only limit on population growth is food. So if you grow twice as much food then the population doubles (in 10 years) and you're right back to starvation. The only effective method (so far) to solve world hunger is to raise the standard of living to the point they stop having all those kids, then the problem solves itself.
A city wide turbo-lift system would solve our traffic problems. Every intersection would have elevator booths, and once below grade you travel horizontally at high speed. No obstacles in the road, no weather, no parking problems.
The technology is doable now, but the safety issues are not. Flying cars must be computer controlled, otherwise you'll have a lot of accidents. People can't navigate in 2D safely, now you want 3D with no painted lines or traffic lights?