Last week at a roundtable discussion, Bob Costas opened another front by making the provocative prediction that parents will not allow their sons to play football because it "destroys people's brains" and that "if I had an athletically gifted twelve-year-old son, I would certainly not allow him to play football." Is football truly destroying the brains of boys across America? The gauntlet has been thrown. Many articles reporting Mr. Costas's comments cite the high-profile study conducted by Boston University published in July 2017 in the Journal of the American Medical Association (JAMA). See examples here, here, here, here, and here....