From the zerocoin.org FAQ:
Zerocash extensions can accommodate various choices of balance between accountability and privacy.
For instance, there are promising techniques for preventing money laundering without violating the privacy of legitimate users (e.g., CHL06). Roughly, the idea is to build the cryptographic protocol so that, once the total amount paid between any two users (over any number of payments) exceeds some public threshold, the payments are not private. Zerocash could incorporate such techniques (though the initial prototype does not do so).
More generally, the underlying zk-SNARK cryptographic proof machinery is flexible enough to enforce a wide range of policies. It can, for example, let users prove that they paid the taxes due on all transactions, without revealing those transactions, their amounts, or even the amount of taxes paid. As long as the policy can be specified by efficient “nondeterministic” computation, it can (in principle) be enforced using zk-SNARKs and added to Zerocash. This can help to verify and enforce a wide range of compliance and regulatory policies in manner that is non-invasive to privacy. Morever, once codified, policies will be enforced even in the presence of corrupt employees among the authorities.
http://zerocoin.org/q_and_aThis sounds like blatant centralised control to me. Does this apply to ZeroVert?