The man who discovered the PSA test for prostate cancer now says the test is so overused it has become a public health disaster with an annual price tag of $3 billion in wasted testing.

Dr. Richard Ablin writes an op-ed piece in the New York Times calling for the test to be abandoned for routine cancer screening for men over age 50. At most the test is useful in men with a family history of prostate cancer and also useful to detect cancer coming back in men who have already has their prostates removed for cancer.