] CrossID, an Israeli startup founded by two engineers
] formerly at the telecommunications equipment provider RAD
] Group, has developed an innovative, chipless RFID system
] that can protect sensitive documents, such as
] intelligence agency reports, financial securities and
] banknotes. The technology could also be used to create a
] "hands-free" bar code.

If I was VC I'd buy. This is a solid idea. It'll get traction.

RFID Journal - Firewall Protection for Paper Documents