Given that the saddam’s 3rd in command survived, that makes less likely the argument that we didn’t want insurgents to know where they were. Al Dhouri is now a lead general for ISIS. He knows.
Might be why ISIS took al Muthana.
Iraq was also reportedly working on something bioweapon called by the code name Blue Nile.
I would suggest it would be more likely that he may have an idea how many caches there were.
If we were to announce that we found, let's say, 6 different caches of weapons and Al Dhouri knew that there were 20 out there, he would know to keep looking for the other 14.
If we make vague references that don't go into enough detail to make any impact politically at home we are not revealing any info that may get our boys killed in Iraq.
It is a catch 22 in which our honorable former president would err on the side of our military men over his legacy.