There oughtta be a law! Do something! But demands that we “ought” to do something don’t mean that we can do it very well or do it at all. Such is often the case with government action. Likewise, just because we “can” do something doesn’t imply that we ought to do it, which is a danger of making resources available to politicians. Here’s a great essay on this topic that appeared in The Freeman in 2009, with another hat tip to Don Boudreaux at Cafe Hayek.