National missile defense: defense theology with unproven technology.
Since programs were first launched in the 1950’s to build systems capable of intercepting incoming nuclear or conventional weapons, the United States has spent more than $250 billion on various missile defense programs. Despite decades of research, development, and testing, there remains no reliably effective anti-missile system to counter intercontinental ballistic missiles (ICBMs). Systems to counter shorter-range missiles, such as the Patriot and THAAD missile defense programs, have been more successful in tests, but their utility is limited to smaller, regional coverage areas. In fact, the system designated to intercept ICBMs, known as the Ground-based Midcourse Defense (GMD) program, has been unsuccessful in six of its last 11 tests, including three of its last five. This failing test record is exacerbated by the highly-scripted conditions of the tests themselves.
Here’s how it’s supposed to work: interceptors attempt to destroy an incoming ICBM traveling roughly 15,000 miles per hour, or about 20 times faster than the speed of sound. When the Missile Defense Agency (MDA) tests GMD, it assumes prime weather and lighting conditions — and, being a test, it knows the timing and other information that no enemy would provide. Nonetheless, most tests still fail.
GMD is also exceptionally expensive. The Government Accountability Office (GAO) assesses that the total cost of the program will be almost $70 billion — and that cost estimate will almost certainly increase. But despite the hefty price tag and poor test record, some lawmakers want to expand GMD without first proving that the system is effective.
Five things to know about GMD
Have 90 seconds? Learn what you need to know.
Star Wars: The Phantom Interceptor
The problem with GMD: “If you miss by an inch, you miss by a mile.”
In this clip from our May 31, 2017, Nukes of Hazard podcast, former Assistant Secretary of Defense and U.S. chief weapons evaluator Philip Coyle, a Center board member, explains why it’s not necessarily a success when the MDA’s interceptors fully destroy a target when testing — and why coming close is of no value.
FAQ: “Isn’t having something better than nothing?”
At a total cost of nearly $70 billion (a figure likely to increase), the Ground-based Midcourse Defense (GMD) program has a failing test record. In a real-world scenario, the system cannot be relied upon to protect the United States from even an extremely limited attack. In this case — a nuclear attack against the homeland — deploying a failing system to attempt to thwart the attack makes little, if any, difference to not having any system at all.
Lawmakers have an obligation to undertake a rigorous cost-benefit analysis of complex military programs. Unfortunately, such an analysis has not been thoroughly conducted related to GMD. Every dollar spent expanding GMD, without first proving that the system works, is a dollar not spent on other, effective security and diplomatic programs that have been proven to enhance U.S. national security. Read more FAQs
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