All Bitcoin transactions are on a public ledger even the 5 bucks plus confirmation fee you spent for a piece of cake in some hippster restaurant/bar. It might be difficult to attach a name to a transaction but if a Nation State is spying on a person they might be able to get enough information to add a name to a Bitcoin address. Bitcoij needs to become as anonymous as cash. Nobody needs to know what 99% of law abiding people are spending their money on.