It is reported that Taliban fighters targeting British troops in Afghanistan are using Skype Voice-Over-IP phones to communicate among them.
Skype is a cleverly built VOIP communication software. The VOIP calls are heavily encrypted using 256-bit encryption. Skype technology is easily available through an Internet ready computer or mobile Internet devices. With the fast growing mobile market, secure communication is very easy, even for the Taliban. Here you can see that technology at the same time is good and evil, just like the atomic reactors and atom bomb example.
Taliban had been earlier using satellite phones, which could now be tracked and located by western forces.