Earlier quoted context omitted.
Are you advocating that we shouldn't bother testing instead? I'd imagine that many people would be quite interested in knowing the ways they're not 100% that might actually kill them... like cancer.
Just imagine all the stress and suffering caused by the misdiagnosis and unnecessary visits to the doctor and unnecessary tests and imagine that on a grand scale (to say nothing of wasted resources). I’m not saying that to automatically disqualify and increase in the availability of testing – but it does have to be implemented with the proper care and caution.
A) Everyone is told nothing.
B) 5% of people are told “Here’s something. It’s serious.” And, 45% of people are told “Here’s something. But, it’s not serious.”
Option B sounds greatly preferable.