Universal Music
justified repeatedly taking down the Megaupload song and censoring the artists involved (kim kardashian, puff daddy, will.i.am, alicia keys, snoop dogg, chris brown, kanye west, lil john, jamie foxx, and others) by saying they have the right to demand the removal of any video on Youtube regardless of copyright.
If they were able to browbeat Google into signing such an agreement, they would presumably be correct. Of course, these deals with the devil are a very well known necessity for providing services for the content industry on the 'net; otherwise, they won't allow you to feature any of their content on your site. (It's a well-known industry reason why services like Spotify aren't long-term viable - the labels demand all their private financial info and have the ability to kill them at any time by changing the terms.)
Either way, the implications of this are pretty horrid.