Defense One reports that the Pentagon “is beefing up its communications setup inside a hollowed-out section of Colorado’s Rocky Mountains…to protect it from electromagnetic pulses.”  

“Electromagnetic pulses, or EMPs, can occur naturally or by manmade devices such as nuclear weapons. For years, the Pentagon has been working on building weapons that could fry the electronic equipment of an enemy during battle.”  

“Since 2013, the Pentagon has awarded contracts worth more than $850 million for work related to Cheyenne Mountain.”