In the same manner in which the government got full auto(i.e. REAL Assault weapons) off of the streets with the '34 NFA might they try a similar approach with semi-auto long guns? Seems like it'd be easy enough to simply add them to the list of NFA weapons and force everyone who owns one to register it and pay a tax(maybe $200 instead of the $300 for a full auto)summit to a lengthy background check and turn in a finger print card. This way they can skip around the Constitution the same way the did with full autos and they technically won't be banned, just heavily regulated to the point where the average citizen won't bother trying to buy one anymore. Just throwin' this out there for eveyone to chew on a bit so they'll be ready in case this is the road the government takes instead of the outright ban that many think may go into effect.