Death of YouTube by false positives
While I admire Google's efforts in assisting copyright owners, I can't help thinking of the mass of false positives that are going to arise from this. Suppose I upload a video that I took of, say, my nieces dancing. That video just happens to bear a loose resemblance to a dance scene in a famous movie (say positions of the figures, background colour, lighting etc).
So this fingerprinting a) misidentifies my video as a clip from this movie; and b) either prevents me from uploading it or allows the movie company, which has NO rights to my video, to profit from it.
But of course, the major copyright pigs will be perfectly happy with this system, and since little guys like myself don't have the funds to buy our justice, it'll be too bad. And now that Google's done it, and shown it's possible, the US legal eagles won't be slow in making it law that all video hosting websites must use this same technology.
So here's waiting the day Russia, Sweden, or some other nation that still has some concept of freedom in it, hosts their own version of YouTube - and watch the world flock to it, leaving the US version to die the slow death it deserves.