Operation Crossroads: “The World’s First Nuclear Disaster”

With Trump back in office, the recurring question of the need for nuclear weapons testing has resurfaced in the national security debate. Project 2025’s directive that the US return to ‘immediate test readiness’ raises further alarm, given the primacy of that document in Trump’s circle. The general uncertainty around current U.S. nuclear posture gives added weight to the historical importance of the atmospheric and underwater nuclear weapons tests conducted on the Bikini Atoll, recounted here by one of the leading advocates for public safety in the nuclear age. —Ed.”

By Robert Alvarez | Washington Spectator, National Security | May 29, 2025, washingtonspectator.com

Beginning in the late 1970’s, I was working for the Environmental Policy Institute around the time when atomic veterans started to descend on the nation’s capital. I would arrange meetings with Congressional offices, and the offices of both the Defense Nuclear Agency and Veterans Affairs, to enable the veterans to share their experiences and seek justice for being sent in harm’s way. About 250,000 soldiers, sailors, Marines, Coast Guard men, and airmen took part in atmospheric nuclear weapons tests from 1945 to 1963.

John Smitherman and Anthony Guarisco were 17- and 18-year-old sailors, respectively, in July of 1946, when they took part in “Operation Crossroads”—the first two nuclear weapons tests following World War II. These tests were conducted on the Bikini Atoll of the Marshall Islands and codenamed “Able” and “Baker.”

As a result of this extraordinary indifference to lethal danger, some 200 U.S. Navy ships were contaminated, and ships carrying radioactive fallout subsequently sailed to home ports in California. These ports are still being cleaned up today, nearly 80 years later. Glenn Seaborg, the chairman of the Atomic Energy Commission from 1961 to 1971, described the Baker test as “the world’s first nuclear disaster.”

Anthony and John were part of the U.S. Navy’s Pacific fleet involving 40,000 service men and 2,000 civilians. They along with others swam in the heavily contaminated Bikini Lagoon. When I met them in 1980, John was suffering from lymphatic cancer and Anthony from a severe form of spinal arthritis.

In March 1983, Anthony and his wife Mary showed up at my cluttered office and ceremoniously handed me a large stack of documents. They had just visited the UCLA library in Los Angeles and found boxes of forgotten, declassified documents belonging to Dr. Stafford Warren, the chief safety officer during both the Manhattan Project and the 1946 Crossroads tests.

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