I'm thinking at least five years. It's also possible people are being conditioned into just accepting them as part of normal outdoor dress. For thinking people, that's unthinkable, but the vast overwhelming majority of people just go along with what they're told, unquestioning. That's why we're in this mess; nobody asks any questions. But one thing that's for absolute certain, for places where you have to go through a security checkpoint, with a metal detector, and those wand things, and bag checks, we can add a temperature check to that lineup.