
By Diane Carman Peering into the controversy over routine use of the blood test to screen for the prostate-specific antigen is like falling down, down, down into the dark and bewildering rabbit hole that is the health care system in the United States. In many ways the debate over the PSA test illustrates why the system is so confounding, expensive, unmanageable and resistant to change. As men, their providers and policy experts wrestle with the PSA conundrum, recent battles over mammography and hormone replacement therapy illustrate key lessons. When women learned that there was potential harm from annual breast screening…