There is nothing like the release of secret tape recordings to clarify an inconclusive debate. Actually, what the tapes really show is that the Fed’s latest policy contraption - macro-prudential regulation through a financial stability committee - is just a useless exercise in CYA. Macro-pru is an impossible delusion that should not be taken seriously be sensible adults. It is not, as Janet Yellen insists, a supplementary tool to contain and remediate the unintended consequence - that is, excessive financial speculation - of the Fed’s primary drive to achieve full employment and fill the GDP bathtub to the very brim of its potential. Instead, rampant speculation, excessive leverage, phony liquidity and massive financial instability are the only real result of current Fed policy.