COMIC: Bite marks, shoe prints, crime-scene fibers: Matches to suspects are often far shakier than courtroom experts claim. Better statistical methods — among them, a little beast known as the “likelihood ratio” — can cut down on wrong convictions.
It depends on what you mean by a wellness program. Offerings by companies are all over the map, but most are skimpy and scattershot. It takes more than that to boost employees’ health or a company’s bottom line.