In 1942, following complaints from Black university graduates that the National Selective Service board assigned them inferior work, a campaign waged by the "Globe & Mail" newspaper, the Canadian Jewish Congress, and the "Winnipeg Free Press" led to a promise from the National Selective Service board to stop using race when assigning potential employees to employers. During the war, unions became more open to accepting Black members and Winks wrote the "most important change" to black Canadian community caused by World War II was "the new militancy in the organized black labor unions". The most militant Black unions was the Brotherhood of Sleeping Car Porters, which during the war won major wage increases for Black porters working on the railroads. In Winnipeg, a Joint Labor Committee to Combat Racial Intolerance was formed to end discrimination against Jews and Ukrainian-Canadians, but soon agreed to take cases concerning Black Canadians. In 1944, Ontario passed the Racial Discrimination Act, which banned the use of any symbol or sign by any businesses with the aim of racial discrimination, which was the first law in Canada intended to address the practice of many businesses of refusing to take Black customers.