Let's review the results of this controlled experimental study: some men were randomly assigned to screenings, and another group were not. The researchers found that prostate cancer mortality did not differ in the two groups. That means that the screening does not cause a reduction in prostate cancer mortality rates, common sense and anecdotes notwithstanding. To put it bluntly, screenings for diseases like prostate cancer are a huge waste of resources, and the sooner we divert the resources to medical interventions that are empirically validated (e.g., vaccinations), the better.
Miles