From user-made clips to content from big media properties, video is all over Facebook (and more people than ever are using the social network). Along with that trend comes the problem of piracy: plenty of video publishers are seeing their work distributed on Facebook without their permission, and now Facebook says its going to do something about it. In a blog post today, the company says it is building a new video matching system for a "subset" of video publishers. Facebook says that its tool will "evaluate millions of video uploads quickly and accurately, and when matches are surfaced, publishers will be able to report them to us for removal." For starters, this tool will launch in beta with selected partners, but Facebook intends to roll it out more broadly as it gets more effective.