Much of the progress in medicine since I was a medical student has involved expensive, high-tech diagnostic tests and therapies — a trend that has accelerated recently and worries health economists and politicians alike because it boosts healthcare costs.

Suppose you needed to have a CT scan for a sudden, severe headache and partial loss of vision and your doctor asked a nutritionist to read it, rather than a radiologist. Would you trust the diagnosis? Evaluation by a different — and what most would consider a lesser — standard is essentially how a significant amount of research funding is approved by one component of the National Institutes of Health.

One state’s effort to save the Affordable Care Act.

Hoover Institution fellow Henry Miller discusses the flu virus.