Backpacks representing victims of school attacks are displayed outside the National Congress in Brasilia to demand approval of Bill 2630, which seeks to regulate social media activity. The government of leftist President Luiz Inacio Lula da Silva recently announced a series of restrictions on social media in a bid to curb the "epidemic" of school attacks. In April, four children between four and seven years old were killed in a preschool in Blumenau, a city in southern Santa Catarina state, when a man carrying a hatchet stormed the facility. IMAGES