Launched in June 1954 under Attorney General Herbert Brownell and INS commissioner Joseph Swing, Operation Wetback used Border Patrol sweeps, roadblocks and factory and neighbourhood raids across California, Arizona and Texas to apprehend Mexican workers, most of whom were expelled without hearings. To prevent re-entry, deportees were moved deep into Mexico by bus, aircraft and ship; conditions on some transports were severe, and 88 people died of heat in July 1955 on one operation, while a Mexican inquiry into the vessel Mercurio described conditions likened to an eighteenth-century slave ship. The programme operated alongside the Bracero guest-worker system, which continued to recruit Mexican labour legally, and drew criticism for the removal of United States citizens without due process. Historians have established that the widely quoted figure of over a million deportations is inflated. The atlas already contained the Mexican Repatriation of 1929-1936; this is the second and better-known mass expulsion campaign, and its omission was conspicuous.
The United States Immigration and Naturalization Service, with Border Patrol and local police, swept Mexican workers and communities in the south-west and expelled them to Mexico
The 1950 census counted about 2.28 million persons of Spanish surname in Arizona, California, Colorado, New Mexico and Texas, the standard contemporary proxy for the Mexican-origin population. Additional Mexican nationals were present as seasonal Bracero contract workers and as unauthorised migrants, and were not fully captured by the census.
The documented toll is the 88 deportees who died of heat exposure in July 1955 after being left in 44 degree temperatures; the deaths were reported at the time and prompted a Mexican government protest. Deaths on the transport vessels and in the interior after removal were not counted.
Contemporary congressional and press inquiries and the complaints filed by Bracero workers document detention without hearings and the removal of United States citizens.
United States of America, Mexico