We offer the lengthy prepared testimony at the Joint Economic Committee hearing February 25 on "Radio Frequency Weapons and Proliferation: Potential Impact on the Economy." http://jya.com/rfw-jec.htm (112K) Or zipped: http://jya.com/rfw-jec.zip (39K) It provides descriptions of the RF weapons, their development, research and testing, global spread, and threat to the infrastructure and national security. The Internet availability of Carlo Kopp's paper on the E-bomb and similar RFW information is cited as evidence of the spread of the threatening technology. The hearing evolved from JEC hearing testimony in June 1997 which described the threat from RFW, especially that developed by the Former Soviet Union: Magnetohydrodynamic Generator Frequency (MHDGF) Explosive Magnetic Generator of Frequency (EMGF) Implosive Magnetic Generator of Frequency (IMGF) Cylindrical Shock Wave Source (CSWS) Spherical Shock Wave Source (SSWS) Ferromagnetic Generator of Frequency (FMGF) Superconductive Former of Magnetic Field Shock Wave (SFMFSW) Piezoelectric Generator of Frequency (PEGF) Superconducting Ring Burst Generator (SCRBG)