This is a good article to read from the Blog Herald. The article speaks about potential problems of copyright infringement when bloggers embed YouTube videos. But should you believe it?
My take on it is this. If you post your video on YouTube, you are wanting others to see and to share your video content otherwise you would not upload it. Same goes for Google Video. If you want to control your video then you simply do not load it onto Google Video or on YouTube. Very simple.
I find it hard to believe that a lawyer for a person who felt that their video had been infringed upon would contact and try to sue people who have posted a YouTube video uploaded by their client. The issue may exist in the a totally litigious minded group on the Ethernet, but in the real world come on!
I am a big stickler on copyright issues, but I think that this issue and the warning flags issued are not in the scope of real world use.