Troops will no longer be able to take any what are called "happy photos" outside of their base. Photos of activities have included troops mistreating prisoners and desecrating corpses.
To prevent records of such events personal photos will now be disallowed with only official photos being permitted. No doubt there will be no official photos of troops urinating on corpses.
The area command contains some 36,000 troops including over 15,000 U.S. marines. General Charles Gurganus in charge of the area noted that photos of atrocities harmed the war effort. A side benefit is that now reports of such atrocities can safely be written off as Taliban propaganda. For more see this article.