Another crackdown on soldier bloggers

Wired has the story:

The U.S. Army has ordered soldiers to stop posting to blogs or sending personal e-mail messages, without first clearing the content with a superior officer, Wired News has learned. The directive, issued April 19, is the sharpest restriction on troops' online activities since the start of the Iraq war. And it could mean the end of military blogs, observers say.

Are they going to crack down on YouTubes, too?