BRAZIL – Senior judges in Brazil have voiced concern over the detention of the former president, Luiz Inácio Lula da Silva, even as they threw their support behind the sweeping corruption investigation that threatens to topple his embattled successor. Lula’s three hours of questioning in police custody on Friday was the highest profile development in the two-year-old investigation focused on state oil firm Petroleo Brasileiro SA (Petrobras). The detention of 70-year-old Lula, Brazil’s first working-class president and a hero to millions of Brazilians, shocked many in the South American nation. His 2003-10 government helped lift an estimated 40 million out of poverty and raised the nation’s international profile. Supporters and opponents of the former union leader clashed outside his home on the outskirts of Sao Paulo after he was detained by police early on Friday.(theguardian)…[+]