Some of this is money laundering
To catch all this crap the gov would need to deputize every decent citizen.
Without a doubt.
Dittos for a lot of fine art sales.
Whenever something doesn't make sense, there's the possibility that the reason they're giving isn't the real reason.
These random items being insanely priced can be for child trafficking, money laundering, and drug sales.
Re: fine art being insanely priced. Fine art usually isn't inspected as closely by customs agents.
I think we've figured out some comms for:
D. All of the above.