Mexican cartel were busted in Reynosa last November. This was the weapons stored in ONE SMALL HOUSE!
288 rifles, a bunch of pistols, half a dozen 50 cals, and 500,000 rounds of ammo.
For some reason I can't post pictures so I'll give the URL's
http://www.flickr.com/photos/snakekid/3924916974/
And another one
http://www.flickr.com/photos/snakekid/3924916980/
One must think how on earth does one find that many guns for sale even illegaly which these obviously were.