Actually article two details a device for pinpointing laptops that are piggybacking on open wireless, did you fail reading comprehension when you were getting your masters degree in computer bullshit? You send data to wireless router. It sends data back to you. If it didn't send data back to you, then you couldn't very well surf the internet with it. If you didn't send data to it, you couldn't very well surf the internet with it. I don't understand how you can possibly think that you can locate the router without being able to locate the devices the send signals to it. Anyway I could give you links to literally dozens of news stories and technical papers about tracing wireless signals and people being traced while using neighbors WiFi, but I already gave you two and don't feel like wasting my time on an obvious troll / fed. Please by all means continue using Linux BSD with a two character password with a bridge you got from a drug forum using your neighbors wifi without using LE backdoored truecrypt, after all you have a masters in IT security so that must be the way to do things right!