A major act of discontent occurred inside the party during its XIIth Congress in late November 1979, when PCR veteran Constantin Pîrvulescu spoke out against Ceaușescu's policy of discouraging discussions and relying on obedient cadres (he was subsequently heckled, evicted from the Congress hall, and isolated). In 1983, Radu Filipescu, an engineer working in Bucharest, was imprisoned after distributing 20,000 leaflets which called for a popular rally against the regime, while a protests of miners in Maramureș County against wage cuts was broken up by Securitate forces; three years later a strike organized by Romanian and Hungarian industrial workers in Turda and Cluj-Napoca met with the same result. Also in 1983, fearing the multiplication of "samizdat" documents, Minister of the Interior George Homoștean ordered all citizens to hand over their typewriters to the authorities. This coincided with a noted popular rise in support for outspoken dissidents who were kept under house arrest, among whom were Doina Cornea and Mihai Botez.