A newly declassified document shows that J. Edgar Hoover, the longtime director of the Federal Bureau of Investigation, had a plan to suspend habeas corpus and imprison some 12,000 Americans he suspected of disloyalty.
Hoover sent his plan to the White House on July 7, 1950, 12 days after the Korean War began. It envisioned putting suspect Americans in military prisons. . . .
Hoover’s plan called for “the permanent detention” of the roughly 12,000 suspects at military bases as well as in federal prisons. The F.B.I., he said, had found that the arrests it proposed in New York and California would cause the prisons there to overflow. . . .