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Don't risk anything on your main site.
You wouldn't be providing original content with the video, so it's possible you could be Pandalized.
Done well, I don't foresee a problem. Just don't use machine translation.
joined:Dec 29, 2003
Why can't you go and take your own pictures or license pictures?
Unless, say, you write about how good /bad Obama is in 400-1000 words, and then include a few youtube vids to illustrate your point.
You might get penalized by the raters, so long term is a loser IMO.