That was my concern - that they came via e-mail without the DoD "stamp of approval". I made the error of posting a similar set of photos that showed the first destroyed Abrams from Iraq prior to their official clearance, even though I posted them from another web site. The other site was in error for showing them and DoD made them take them down.
Depends on who originally took it. If it's a civ photo, no DOD clearance is required.