Should we be afraid - Wifi?

This is both exiting and scary at the same time. i just came across this article at DCoT about Wave Bubble which has complete plans and instructions on building a low frequency signal jammer. It is small enough to fit in a package of cigarettes, runs of batteries that can be recharged from a USB port, and it is capable of knocking out any wireless signal within a 20 ft radius.

I think I'm intrigued...but i will surely change my network now....

More here....