Last week, European Central Bank chief Mario Draghi (shown) tried to do an impression of former Federal Reserve Chairman Ben Bernanke. Although "Helicopter Ben" — he of the massive, innovative "stimulus" monetary policies enacted in response to the Great Recession, which pumped trillions of new dollars into the global economy — has been retired from the helm of the Fed for several years, he casts a very long shadow indeed. Draghi's own newly enacted stimulus, designed to boost Europe out of persistent economic malaise, not only takes a few pages out of the Bernanke playbook, it moves central banking into...