Good question

I know it's over a month old, but John Watson at the American Thinker asks a great question:

During the last two years of the Obama administration, some unusual purchases were made.  Large quantities of ammunition were purchased, as were firearms, mostly for somewhat obscure agencies or agencies with no real need for such weaponry. 

Seeing the current violence and knowing that Obama didn't mind arming drug cartels- Do we know if all of these weapons are accounted for?