Wilson-Clay.-High-Altitude-Electromagnetic-Pulse-HEMP-and-High-Power-Microwave-HPM-Devices-Threat-Assessments.-August-20-2004-pdf Continue Reading Previous Wilson-Clay.-High-Altitude-Electromagnetic-Pulse-HEMP-and-High-Power-Microwave-HPM-Devices-Threat-Assessments.-August-20-2004-pdf