Wireless Network Hacking
I was interviewed for a CBC documentary on cyberterrorism several months ago. This segment is one of the better one's I have seen on the topic and the demonstrations of wireless network mapping are very interesting. You can view it online.
HERF Weapons for the Masses
Many security experts quickly dismiss the threat of HERF weapons as an attack platform. They might find the following site of particular interest. It details one individual's successful attempts to create operational HERF weapons. Visit SVBXLabs