Do you seriously believe that this high profile site would have been left totally unattended with explosives lying around and the equipment to make more explosives etc all still intact?
We know now that HMX and RDX was not found when the troops got there first. So it was removed before, maybe years ago. From this point on everything else is speculation and partisan media fabrication.
For all we know those boxes of white powder could have been compounds that are used to make explosives. By itself it could have been totally safe.
This is what we KNOW. The material was removed between March 8 and May 27. Either while we had the site under serious surveillance, or after the 3rd ID made initial contact with the site. While the latter is worse, neither of those scenarios makes a particularly favorable statement about our capabilities and our actions.
As far as what I believe - lots of caches have been left unattended. We know, for example, that the primary nuke material site (Al Tuwaitha sp?)was looted AFTER we 1st got there. Why would this one get better treatment than that one?