Randall Hand
Randall Hand is a computer graphics programmer and news junky that's been working in the field for the last 15 years. He's responsible for visualizations generated on some of the most powerful supercomputers in the world, ytnef, mullion support in ParaView, and VizWorld.com.
In addition to the Randall’s article, Apple just released an iPhone app a few days ago, called Scam Detector, which has a lot of telemarketing scams. The app exposes in detail over 350 of the most notorious scams in the world. Lots of them are telephone scams. It is worth checking it out, if you have an iPhone. The app it’s kinda cool, actually. Their page: http://www.scam-detector.com