So I recently learned that a person that ran a btc<=>fiat exchange(fairly small in terms of volume, no kyc/aml implemented) got arrested because supposedly some of the users he dealt with were laundering money, unbeknownst to him. This guy was raided with local police and even US authorities and is going to be extradited to the US. Honestly, this sucks cause it shows just how much influence the US has over the world and how easily it can get someone there to spend a lifetime in prison.
I really think that there are many factors why, they could have taken him prisoner, I think maybe they were tracking him and they got that little flaw and took advantage of grabbing him, I think the Americans are very smart and very smart people, they are hardly wrong in his procedures, they all keep it calculated.