The dangers of wireless internet access.
By the way: This article is on the Washington Post website and like many to which I link, you have to register for the site in order to read the article. Some folks have informed me that they don't like to register for newspaper sites, mainly because they fear they'll wind up on even more spam mailing lists. I don't think the major newspapers do that but if you're worried about this, there's an easy solution. Get an extra e-mail address for sign-ups. Your Internet Service Provider may offer you extra screen names for no extra cost. If they don't, go to some service like Hotmail, get a new e-mail address for free and use it whenever you have to sign up for something. Very simple, very safe.