Bruce Schneier is the worst.
As one example, he states the metal detectors won't work and the link given for that says
"And the handful of studies that have been conducted into the efficacy of scanners have found that, at best, they merely divert terrorists into trying other things: when airports began installing tougher security screenings, plane hijacking fell, but other kinds of "bombings, armed attacks, hostage taking, and events which included death or wounded individuals" rose by an even greater margin."
OK, so metal detectors won't work b/c terrorists will attempt attacks at places other than a baseball game?? If that's the definition of not working...