A son of a member of Brazil's Movimento dos Sem-Teto (Roofless Movement) plays with a toy in between rows of tents on the Cha viaduct in front of the city hall of Sao Paulo July 16, 2013. More than 250 families of Brazil's Roofless Movement are demonstrating for the construction of homes. REUTERS/Nacho Doce (BRAZIL - Tags: SOCIETY POVERTY CIVIL UNREST REAL ESTATE BUSINESS)