Rodrigo Paz, the centrist senator who won the presidential election in Bolivia last month, was sworn in this weekend and immediately set to work to undo the policies of 20 years of nearly-uninterrupted socialist rule. In the first round of the presidential election on 17 August, the left-wing Movimiento al Socialismo (MAS) suffered a historic defeat after nearly two decades in power. MAS nominee Eduardo del Castillo won only about 3% of the vote, while right-leaning Quiroga secured 27% and the more centrist Paz won 32%. Paz, who defeated conservative…