US Army Kills Soldiers Blogs:

Military officials have been wrestling for years with how to handle troops who publish blogs. Officers have weighed the need for wartime discretion against the opportunities for the public to personally connect with some of the most effective advocates for the operations in Afghanistan and Iraq -- the troops themselves. The secret-keepers have generally won the argument, and the once-permissive atmosphere has slowly grown more tightly regulated. Soldier-bloggers have dropped offline as a result. - from defence Tech -

http://blog.wired.com/defense/2007/05/new_army_rules_.html

http://blog.wired.com/defense/files/army_reg_530_1_updated.pdf