DOD Directives and Instructions website restricted?

Hi,

until very recently, the U.S. DOD's directives and instructions could
be downloaded by the general public from

http://www.dtic.mil/whs/directives .

Now it says "Only authorized .mil/.gov domains are allowed access to
this site."

Does anyone know why the access was restricted? Or is there a new URL
where I can access the documents? Thanks in advance!

Andreas