A man lights up his cigarette with the flames of a bus burned by anti-government demonstrators during a protest against the constitutional amendment PEC 55, which limits public spending, in front of Brazil's National Congress in Brasilia, Brazil December 13, 2016. (Photo by Adriano Machado/Reuters)





Anti-government demonstrators clash with riot-policemen during a protest against the constitutional amendment PEC 55, which limits public spending, in front of Brazil's National Congress in Brasilia, Brazil December 13, 2016. (Photo by Adriano Machado/Reuters)





A riot-policeman fires pepper spray against a demonstrator during a protest against the constitutional amendment PEC 55, which limits public spending, in front of Brazil's National Congress in Brasilia, Brazil December 13, 2016. (Photo by Adriano Machado/Reuters)





Anti-government demonstrators clash with riot-policemen during a protest against the constitutional amendment PEC 55, which limits public spending, in front of Brazil's National Congress in Brasilia, Brazil December 13, 2016. (Photo by Adriano Machado/Reuters)





Anti-government demonstrators launch a flare towards the Sao Paulo Industry Federation (FIESP) building during a protest against the constitutional amendment PEC 55, which limits public spending in Sao Paulo, Brazil, December 13, 2016. (Photo by Paulo Whitaker/Reuters)





An anti-government demonstrator pushes the gate of Sao Paulo Industry Federation (FIESP) building during a protest against the constitutional amendment PEC 55, which limits public spending in Sao Paulo, Brazil, December 13, 2016. (Photo by Paulo Whitaker/Reuters)





Anti-government demonstrators launch a flare towards the Sao Paulo Industry Federation (FIESP) building during a protest against the constitutional amendment PEC 55, which limits public spending in Sao Paulo, Brazil, December 13, 2016. (Photo by Paulo Whitaker/Reuters)





Anti-government demonstrators through objects in the main entrance of the building of Sao Paulo Industry Federation (FIESP) during a protest against the constitutional amendment PEC 55, which limits public spending in Sao Paulo, Brazil, December 13, 2016. (Photo by Paulo Whitaker/Reuters)





Riot policemen stand next to a barricade burned by anti-government demonstrators during a protest against the constitutional amendment PEC 55, which limits public spending, in front of Brazil's National Congress in Brasilia, Brazil December 13, 2016. (Photo by Adriano Machado/Reuters)





A demonstrator dressed as Santa claus walks next to a barricade burned by anti-government demonstrators during a protest against the constitutional amendment PEC 55, which limits public spending, in Porto Alegre, Brazil December 13, 2016. (Photo by Lunae Parracho/Reuters)





Protestors set a bus on fire during a demonstration at the Ministries Esplanade, the avenue of the main Governmental buidings in the country, after the Senate passed the cuts promoted by the Government, in Brasilia, Brazil, 13 December 2016. (Photo by Joédson Alves/EPA)





Demonstrators fire flares as they try to enter the State's Industries Federation of Sao Paulo building during protest against Brazilian President Michel Temer in Sao Paulo, in Brazil, 13 December 2016. (Photo by Fernando Bizerra Jr./EPA)





Demonstrators outside the State's Industries Federation of Sao Paulo building during protest against Brazilian President Michel Temer in Sao Paulo, in Brazil, 13 December 2016. (Photo by Fernando Bizerra Jr./EPA)





Demonstrators fire flares as they try to enter the State's Industries Federation of Sao Paulo building during protest against Brazilian President Michel Temer in Sao Paulo, in Brazil, 13 December 2016. Thousands of Brazilians protested in 13 out of the 27 states of the country against the public spending cuts proposed by the Government and passed by the Senate on 13 December as new corruption scandals were revealed. (Photo by Fernando Bizerra Jr./EPA)