immigrants within the "whitening" and assimilationist policy of the Brazilian government. Oliveira Viana, a Brazilian jurist, historian and sociologist described the Japanese immigrants as follows: "They (Japanese) are like sulfur: insoluble". The Brazilian magazine "O Malho" in its edition of 5 December 1908 issued a charge of Japanese immigrants with the following legend: "The government of São Paulo is stubborn. After the failure of the first Japanese immigration, it contracted 3,000 yellow people. It insists on giving Brazil a race diametrically opposite to ours". In 1941, the Brazilian Minister of Justice, Francisco Campos, defended the ban on admission of 400 Japanese immigrants in São Paulo and wrote: "their despicable standard of living is a brutal competition with the country’s worker; their selfishness, their bad faith, their refractory character, make them a huge ethnic and cultural cyst located in the richest regions of Brazil". The Japanese Brazilian community was strongly marked by restrictive measures when Brazil declared war against Japan in August 1942. Japanese Brazilians could not travel the country without safe conduct issued by the police; over 200 Japanese schools were closed and radio equipment was seized to prevent transmissions on short wave from Japan. The goods of Japanese companies were confiscated and several companies of Japanese origin had interventions, including the newly founded Banco América do Sul. Japanese Brazilians were prohibited from driving motor vehicles (even if they were taxi drivers), buses or trucks on their property. The drivers employed by Japanese had to have permission from the police. Thousands of Japanese immigrants were arrested or expelled from Brazil on suspicion of espionage. There were many anonymous denunciations of "activities against national security" arising from disagreements between neighbors, recovery of debts and even fights between children. Japanese Brazilians were arrested for "suspicious activity" when they were in artistic meetings or picnics. On 10 July 1943, approximately 10,000 Japanese and German and Italian immigrants who lived in Santos had 24 hours to close their homes and businesses and move away from the Brazilian coast. The police acted without any notice. About 90% of people displaced were Japanese. To reside in Baixada Santista, the Japanese had to have a safe conduct. In 1942, the Japanese community who introduced the cultivation of pepper in Tomé-Açu, in Pará, was virtually turned into a "concentration camp". This time, the Brazilian ambassador in Washington, D.C., Carlos Martins Pereira e Sousa, encouraged the government of Brazil