The little-known true story of a mysterious nuclear reactor disaster—years before Three Mile Island, Chernobyl, or Fukushima. Before the Three Mile Island incident or the Chernobyl disaster, the world’s first nuclear reactor meltdown to claim lives happened on US soil. Chronicled here for the first time is the strange tale of SL-1, an experimental military reactor located in Idaho’s Lost River Desert that exploded on the night of January 3, 1961, killing the three crewmembers on duty. Through exclusive interviews with the victims’ families and friends, firsthand accounts from rescue workers and nuclear industry insiders, and extensive research into official documents, journalist William McKeown probes the many questions surrounding this devastating blast that have gone unanswered for decades. From reports of faulty design and mismanagement to incompetent personnel and even rumors of sabotage after a failed love affair, these plausible explanations raise startling new questions about whether the truth was deliberately suppressed to protect the nuclear energy industry.

Taylor's Crossing began as a wooden toll bridge over a narrow spot on the Snake River for travelers along the Old Montana Trail. By 1883, it was known as Eagle Rock, a dusty outpost for railroad workers, bullwhackers, and miners. "We can not claim an orderly town," the newspaper reported. "The reckless firing of firearms at all hours of the day and night is a nuisance that should be stopped." When the railroad pulled out its shops, the town almost died. Following statehood and another name change, Idaho Falls transformed itself into an agricultural center and outfitting point for visitors to Yellowstone Park. In 1949, the Atomic Energy Commission arrived, and the nearby desert became a training ground for the nuclear navy, the test site for a new "inherently safe" boiling-water reactor design and the location of the world's first fatal nuclear accident.

In 1864, a stage line driver named Matt Taylor and two associates decided Black Rock Canyon was the place for a toll bridge to handle traffic to and from Montana. The following year, their bridge opened and a town called Eagle Rock took shape. With the coming of the railroad, trains brought everyone from saloon keeper Dick Chamberlain to temperance crusader Rebecca Mitchell. To project a more genteel air, Eagle Rock became Idaho Falls in 1891. Joseph Clark, the first mayor, and newspaper publisher William Wheeler were just two of the people who helped pave the streets and turn on the lights. After assiduous wooing by boosters such as Bill Holden, D.V. Groberg, and E.F. McDermott, the Atomic Energy Commission in 1949 chose Idaho Falls for the headquarters of its National Reactor Testing Station. Today, Idaho Falls is a vital trading and service center with two hospitals, a professional baseball team, symphony orchestra, and world-class museum. It is also the hometown of some remarkable people who have gone out in the world to make names for themselves.

Mikko Harvey is the author of "Unstable Neighbourhood Rabbit" (House of Anansi Press, 2018). He recently received the 2017 RBC/PEN Canada New Voices Award, as well as fellowships from the MacDowell Colony and Yaddo. He currently lives in New York City, where he serves as the Joseph F. McCrindle Foundation Editorial Fellow at Poets & Writers Magazine. Jake Bauer serves as poetry editor for The Journal. His poems have recently appeared in DIAGRAM, Threepenny Review, The Bennington Review, and RHINO, among others. He lives in Philadelphia.