We know that the tech works. If the USPS can't own it, what will stop other agencies from scanning mail? Post-9/11 there was a huge federal power grab: "securi

We know that the tech works. If the USPS can't own it, what will stop other agencies from scanning mail? Post-9/11 there was a huge federal power grab: "security" at the cost of our personal liberties. I think stopping USPS from scanning is playing ineffectual whack-a-mole instead of neutering some three-letter-agencies. But it's probably at least political suicide to challenge those agencies directly.