Unfortunately that’s what they do. I used to work in the surveillance tech industry.
They go to extreme lengths to get dirt on normal people, but never take action on the big criminals, because those are their bosses or their bosses bosses/friends.
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the resources required to do that are not worth it for them for the amount limits availalbe on p2p exchanges.
I also worked in two different surveillance tech industries and one government surveillance body.
Now you are being naive. There is a reason they would like to surveil every single fiat transaction.
A major purpose of TLAs is to have dirt on as many people as possible to silence inconvenient people.
With the complicated and often not completely finalized tax laws on bitcoin, it’s just too tempting.
In the end the only thing they had on Al Capone was taxes.