You must be referring to Fast and Furious and Wide Receiver ops by bush obama https://www.floppingaces.net/2011/10/11/operation-wide-receiver-it-was-different-reader-post/ Your article doesn't say they have serial numbers and then go to the gun shops that sell them and put them out of business just the manufactures. That is a ds op to remove guns from the US since they can't remove the 2nd admendment.