Here's what my Internet correspondent reminded me of (and if you see it on the Internet, it must be so): "According to today's regulators and bureaucrats, those of us who were kids in the '40s, '50s, '60s and '70s probably shouldn't have survived. Our mothers put us in cribs covered with bright-colored lead-based paint. "There were no childproof lids on medicine bottles, doors or cabinets, and when we rode our bicycles into traffic (bike paths were unheard of), we had no helmets. If we didn't feel like pumping a bike up the hills, we could always hitch a ride with...