WASHINGTON — In explaining the disastrous rollout of “Obamacare,” President Barack Obama told Chris Matthews he had discovered that “we have these big agencies, some of which are outdated, some of which are not designed properly.” An interesting discovery to make after having consigned the vast universe of American medicine, one-sixth of the U.S. economy, to the tender mercies of the agency bureaucrats at the Department of Health and Human Services and the Internal Revenue Service. Most people become aware of the hopeless inefficiency of sclerotic government by, oh, 17 at the department of motor vehicles.