YouTube spokesperson says block message appeared in error, but video has since been marked as private. The most likely explanation is that the video was flagged by YouTube’s pre-emptive content filters, which automatically blocks content that appears to match copyrighted video content uploaded by media giants. That was the driving force that knocked video of the Curiosity rover’s dramatic landing on Mars from the video site last month, as well as a livestream of the Hugo science awards earlier this week that included short clips of copyrighted material.
More:
http://news.cnet.com/8301-1023_3-57506193-93/dnc-livestream-on-youtube-blocked-on-copyright-grounds/
