CIE
From the outset, there was resistance to the idea of the CIE. In 1966 President Castelo Branco rejected the idea of creating an army intelligence service, because it would weaken the General Staff. The next year, 1967, the new minister of the army, General Aurélio de Lyra Tavares, established the CIE over the objections of the chief of staff, General Orlando Geisel.
As early as 1968, the CIE began bombing theaters, destroying bookstores, and kidnapping people. When insurgents began terrorist violence in late 1968, the CIE expanded to about 200 officers and began a counter-offensive, eliminating all signs of leftist violence in three years.
President Geisel, a retired general, struggled to have his orders fulfilled by the CIE system. Consequently, the CIE sought to undermine his government and to make Army Minister Sylvio Couto Coelho da Frota the next president. The CIE also waged a pamphlet war against the previously mentioned Couto e Silva, chief of Geisel's Civilian Household, who wanted to shut down the CIE.
Read more about this topic: National Intelligence Service Of Brazil