By Jack Liu
Recent press articles warn about the possibility of the North Koreans launching an electromagnetic pulse (EMP) attack on the United States, and there are even suggestions that the recent missile test failures may represent a thinly veiled EMP threat. However, such an attack from North Korea is unlikely, as it would require the North to have much larger nuclear weapons and the missile capability to deliver them.EMP Concerns
The Report of the Commission to Assess the Threat to the US from EMP Attack states:
When a nuclear explosion occurs at high altitude, the EMP signal it produces will cover the wide geographic region within the line of sight of the detonation. This broad band, high amplitude EMP, when coupled into sensitive electronics, has the capability to produce widespread and long lasting disruption and damage to the critical infrastructures that underpin the fabric of U.S. society.
The effects of the pulse can be transferred directly to sensitive devices or as an electrical surge over power lines.