The U.S. government is hiring “Nuclear Materials Couriers.” Since the 1950s, this team of federal agents, most of them ex-military, has been tasked with ferrying America’s 6,800 nuclear warheads and extensive supply of nuclear materials across the roads and highways of the United States. America’s nuclear facilities are spread out throughout the country, on over 2.4 million acres of federal real estate, overseen by the Department of Energy (DOE)—a labyrinth of a system the Bulletin of the Atomic Scientists called “highly scattered and fragmented…with few enforceable rules.”
Some sites are for assembly, some are for active weapons, some are for chemicals, some are for mechanical parts. What this means in practice is that nuclear materials have to move around—a lot.
For as long as the United States has had nuclear weapons, it has struggled with the question of how to transport America’s most destructive technology throughout the country without incident. “It’s the weak link in the chain of nuclear security,” said Dr. Edwin Lyman of the Union of Concerned Scientists.
Today the United States relies almost entirely on million-dollar, Lockheed Martin tractor-trailers, known as Safeguard Transporters (SGTs) and Safe Secure Trailers (SSTs) to move nuclear material. But from the 1950s through the 1980s, the great hope for safe transit was so-called “white trains.”
These trains looked entirely ordinary, except for a few key details. They featured multiple heavily armored boxcars sandwiched in between “turret cars,” which protruded above the rest of the train. The turrets had slit windows through which armed DOE guards peered out, prepared to shoot if they needed to defend the train. Some guards had simple rifles, while others reportedly had automatic machine guns and hand-grenade launchers. Known in DOE parlance “safe, secure railcars,” or SSRs, the white trains were highly resistant to attack and unauthorized entry. They also offered “a high degree of cargo protection in event of fire or serious accident,” the DOE assured a wary Congress in 1979.
…….. Today’s nuclear infrastructure—much of which is focused on decommissioning rather than building weapons—is reliant on Safeguard Transporters and their armed drivers. Much like the rest of the America’s nuclear arsenal, many of the trucks are antiquated; about half of the SSTs are over 15 years old. The trucks, which log over three and a half million miles each year, are accompanied by unmarked escort vehicles and their only easily recognizable feature is their U.S. Government license plates.
Transportation of nuclear materials is currently overseen by the Office of Secure Transportation (OST), an agency that has attracted only minimal attention in the years since the fall of the Soviet Union. But a 2017 Los Angeles Times investigation suggested problems may lurk beneath the surface. OST is understaffed, with the average courier working about 75 hours a week. Turnover is extremely high. In 2010, a DOE investigation found “widespread alcohol problems” within the agency, including incidents that occurred while couriers were on secure transportation missions. The DOE conceded that these episodes “indicate a potential vulnerability in OST’s critical national security mission.”
Major challenges remain for nuclear transportation in America. Plans to “modernize” America’s nuclear arsenal, supported by both the Obama and Trump administrations, mean that weapons will be taking more trips than ever on American roads. Beginning in 2010, around one thousand W76 warheads traveled from Bangor, Washington back to Amarillo, Texas, for upgrades to extend the life of the weapon by 30 years—a massive undertaking, entirely dependent on the OST’s fleet of Safeguard Transporters. Perhaps the most pressing issue is nuclear waste and in particular, excess plutonium, most of which remains at Amarillo’s Pantex plant and will need to be moved to secure disposal facilities in the years to come.
Whether waste or weapons, trains or trucks, the United States has been remarkably fortunate in avoiding major transportation mishaps. Since the days of the white trains, the government has insisted that nuclear materials are being moved across the American landscape in the safest possible way, persisting through crashes, fires, and interfering nuns. Yet public fears endure about whether moving such materials can ever truly be “safe.”
“We’ve been moving this stuff since the Cold War, and we’ve never had a major accident,” said Rosner. “But the system depends on secrecy. If we have an accident, that veil will be lifted.” https://www.history.com/news/nuclear-transportation-u-s-white-trains-cold-war
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