This is a lightweight plugin to embed youtube in a way that respects your readers privacy.
It uses the standard wordpress syntax to embed youtube videos from https://www.youtube-nocookie.com instead of http://www.youtube.com so the video is encrypted with https and no cookies are send to track the user.
No special syntax. Just use automatic wordpress embedding introduced in WordPress 2.9. Put the video URL on a new line or (if you want to specify the size) between [embed] shorcode. More info in the codex.
Uses HTTPS and youtube-nocookie.com for privacy.