The Deparpment of Defence, as well as Wal-Mart and affiliats, will be using radio frequency wireless technology by 1/1/05, and most products and services, will use RFID Tags and Smart Stamps by 2006. I am really worried about privacy issues and security at that time, as well as now! The MATRIX security system will be all over America by the 22nd Century. Nano-technology is planned to be incorperated with RFIDs by the 23rd Century. Nanites and Nano-Tubes combined with RFID technology, could possibly be the worst scenario ever, with the exception of Star Wars like satalite systems and steath bombers equipt with Smart Bombs in the hands of hackers and virus makers. Courtesy of our Government, and the military.