"ECHELON is a term associated with a global network of computers that automatically search through millions of intercepted messages for pre-programmed keywords or fax, telex and e-mail addresses. Every word of every message in the frequencies and channels selected at a station is automatically searched."
Silverman heads a second company that sells the rice-size people chips, which are the only ones with Food & Drug Administration (FDA) approval, for implantation in an individual's right biceps. They carry an identity marker that would be linked to medical records. His goal is to create "the first RFID company for people."
It will be powered by solar energy, and will stay in a geocentric orbit for up to a year, undetectable by ground-based radar. You can't see it from the ground. But it can see you.