[Indirect relation with crypto] At first, I did not think anything of it, but it struck me today: authorities hate cash and they will do anything to keep track of you. I would not be surprised if in 10-15 years, ANYONE carrying more than, say, $1000 will need to provide justification on demand. Food for thought - just a trend I am sharing. In any instance, that will be another great use case for crypto (carrying as much currency as one wants).
Of course the guy was nabbed for money laundering, but I have seen the same 'only pocket cash' condition being imposed 3-4 times since last summer.