The so-called "expanded data protection mode" has been activated in the YouTube videos embedded in this website. This mode prevents YouTube cookies (small text files containing user information that your browser stores in your computer) from being stored in a user not registered with YouTube who displays a website with an embedded YouTube video player that has expanded data protection but does not click on the video to start playing it. Although under some circumstances YouTube can save cookies on the user’s computer after he has clicked on the YouTube video player, no personal cookie information for reproducing embedded videos with expanded data protection is stored.
For more information, visit the YouTube website. YouTube.