Europool here.
Don't pay attention to what the first guy, bitmixer.io, said. It's safe to continue to use Bitcoin mixers. The nonprivate blockchain ensures this. We really can't trace anything on the nonprivate blockchain because we lack the resources to do so. Bitmixer.io is just ignorant.
Our US Government friends, in your best interest, encourage you to continue using Bitcoin mixers, Dash and Zcash. Don't pay attention to their CEO who said they could deanonymise your transactions. He was high that day and was just joking. What a riot!
Look. We don't care how you spend your money. We're only after terrorists but we need to monitor all transactions since we don't know who could be a terrorist. THere's really no way to narrow down a list of possible terrorists, no way at all and you know that's true, so we look at everyone. It's really no big deal though. I mean we can't trace anything anyway.
It's been a long day. I'm off to the pub to see a...get ready for it...mixologist. Wha-what? Because alcohol never hurt anyone but weed is worse than rapists. That's why we let rapists in and kick weed out. Note to self: delete the previous sentence before posting.
Thanks for your cooperation.
There is no private here, all transaction are shown in the blockchain and you need FIAT to have a live.
Now every where, any critical store or business already implant "known your customer policy", you hide nowhere.
Like chinese proverb said that people afraid of businessman, businessman afraid of government. So you never win against government