That was proposed a couple years ago- 2009 I think. Basically the DRMO process was going to be changed to require all spent brass from the military to be destroyed and scrapped instead of sold as intact casings. NOrmally the larger Destructive Device brass is shredded anyway, they wanted to make it include the small arms brass. There was an emormous stink raised by the NRA and a lot of other senators and congressmen since a large amount of ammo used by LEOs for training is made from remanufactured military brass.
The reclassification was decided to not be necessary, and it was dropped.
I buy a lot of brass, and always watch the DRMO auctions. There has been nothing come up about this.
The usual forwarded emails are still circulating in cyberspace, along with the "Don't flash your headlights at cars with no lights or gang members will kill you".http://www.snopes.com/politics/guns/casings.asp