Please provide a way to allow or block which video providers can be used in embedding. As of August 29, 2013, according to http://vimeo.com/help/faq/watching-videos/playback-issues#does-vimeo-sup..., Vimeo does not support closed captioning. As all of our videos must be closed captioned, which is supported by YouTube, I only want our staff to be able to embed YouTube videos. (Of course, they still have to post a captioned video, but it is one less thing to have to worry about that they might post a Vimeo video.)