Retailers get it, they understand the value of being a good citizen.
You can't treat apparel like underwear and socks, especially if it is fashionable clothing. You've got to present an image, and that's what (Wal-Mart is) not so good at.
Lots of business opportunities come out of tragedy. It's the capitalist way of life. I think the a market for airport-friendly merchandise is a good thing.