1) "...one of the tasks assigned to the STS-107 crew was to take photographs of the External Tank immediately after tank separation to see just what broke off, where it broke loose, and how big it really was. Those photos were taken, but sadly they will probably not be recoverable."
Airship, the photography requested was apparently done because of foam insulation coming off the external tank and striking the SRM cowling during the Atlantis launch in October, 2002. It was likely done to see whether the Atlantis problem was a one-of or something recurring.