T here's an old joke about how trying to change a toddler who doesn't want to be changed is like trying to wrestle an allegator. And, as anyone who has ever been in this situation can tell you ...

The new Lumi by Pampers system is Procter & Gamble's effort to make a smart diaper. Lumi is a three-part system, comprising a smart sensor, a baby camera, and nicely built app to tie it all ...