MY USA TODAY COLUMN Don’t underrate how far we’ve come. Plus, a warning:

Things aren’t perfect today, of course, and there are still plenty of things to worry about. But it’s worth noting just how far we’ve come. It’s also worth noting that most of these advancements are the result of free enterprise and open markets, and worth remembering that politicians, for their own selfish purposes, might stop this progress at any time. Free markets are great, but they don’t offer the opportunities for graft and personal aggrandizement that un-free markets do. And to politicians, that’s a bug, not a feature.

Consider yourself warned.