You and everyone you know carries a digital ball and chain -- weightless in size, yet still bright enough to be seen from anywhere by anyone who knows where to look. You don’t remember the address of that rental house from forty years ago, but it’s chiseled into one of those digital chain links. AdvertisementThe latest brand of intrusion entered my sphere of consciousness when my wife mentioned Flock cameras. And when Fox Business runs a segment on Flock cameras and privacy concerns, even the most anti‑pop‑culture person -- myself -- starts to take notice. Flock cameras at the border of every town in the Shire are just another link in the digital chain.