We live in a world of supercomputers, extensive databases and omnipresent cameras. That change is particularly apparent to those of us who have gone from using desk phones to carrying cellphones — which, after all, are computers — in our pockets.
Today, many of us assume that the authorities track our every move, as does private industry. Or that they could.
In an era of rare terrorist attacks, not-so-rare mass shootings and violent crime, that should come as no surprise. We expect law enforcement to quickly find the bad guys. We want them to do so — no matter what it takes — and return us to a sense of safety…