Have you not seen the bombings that threaten cities worldwide? From the boston bombing that claimed a few lives, to ISIS taking over bases in the middle east?
The big 'T' propaganda that is designed to keep you enslaved to the State.
You have more risk of dying in a car accident or heart attack.
In the USA, one has an
800% higher probability of being killed by the police than a terrorist.
Full secrecy would allow child molesters, terrorist organizations, violent racial groups, gangs, corrupt governments(north korea), etc to grow even more without anyone being able to take them down, especially when it comes to transmitting money..
It will also enable men to get back to being
gentlemen who use deadly force against such. It will enable anonymous bounties to be put on the heads of such criminals. I live in Davao which has nearly no crime, because criminals are executed along the side of the road by the Davao Death Squad. No court, no jail time, no nonsense. You are given 3 warnings to reform or leave.
That's why I do not support Zerocash. WIth Ring Signatures you can have full anonymity and still be Legal(so you're transaction history is still known by you incase of anything), while zerocash doesnt have such things.
Zerocash can't be trusted, because the money supply can't be known and the math is unvetted. Also like Ethereum it is created by academics, so will (most likely) suck.
Ring signatures are unwound if the tax authorities will require us to provide our password to justify our tax basis (my theory of the future). Ring signatures don't mix well with a fully decentralized design which can scale transactions.