The Times
All around us, we’re hearing of cases where scientific findings are collapsing, not because of new research overturning old ideas, but because investigations into accuracy or truthfulness have turned up red flags. Traditionally, science relied on pre-publication peer review by two or three experts per submitted manuscript. They were supposed to identify early problems such as data that don’t add up, or incorrect conclusions. But peer review has never been as good a filter as many would like to think.