It's too broad of a statement. Take a look at individual tests to see if they make sense. A PSA urine test, for example, is insanely cheap and catches many ex

It's too broad of a statement. Take a look at individual tests to see if they make sense. A PSA urine test, for example, is insanely cheap and catches many expensive prostate cancers in early stages. Mammograms are the similar (less cheap, but still life saving). For those specific tests, the evidence is clear.