Possessing unreg'd MG's (irregardless of whether one believes class 3 registration is unconstitutional) is asking for trouble. I don't condone persuading or enticing someone to commit a crime - which is downright shameful - but the Fed's tactics should not be news to anyone who has any sort of experience w/ "black guns", especially class 3 ones. As well, anyone who has spent a fair amount of time on this board & others like it should know that playing w/ legal fire will get you legally burned.
Mr. Smith may be a "good guy", but he played it wrong in this case. Why?
Well, MG registration is not a new concept in this country. Maybe gun owners should have created a fervor back in the day when registration was first made a legal requirement, but they didn't. Thus, their inaction allowed the precedent to be set. Requiring nationwide registration would be crossing the line, IMO. I certainly don't intend to let the current legalese BS go unchallenged, skeptical though I may be, but I also know that once a law is passed, you cross into a new threshold that poses potentially dire consequences if your are caught out. He took the chance, & he lost. If he didn't have the stomach to pay the potential price, then he should've simply registered them (if possible), or destroyed them. Better yet still, don't even get into that mess.
Again, I don't condone ATF (or any other) persuading or enticing anyone to commit a crime, but this is how they've always played it - always. Don't be bold beyond your capacity. If one does indeed possess contraband, one is indeed asking for trouble. I don't like many of the laws in this country, but there are certain realities that should be considered before taking any risk. It's just a good decision-making.
Sorry if this sounds like a flame, because it's not meant to be one.