Argentina's Congress Names Duhalde as President By Alistair Scrutton BUENOS AIRES, Argentina (Reuters) - Argentina's Congress on Tuesday appointed Eduardo Duhalde, a populist powerbroker in the Peronist Party, as the new president until 2003, with the task of ending recession and social chaos in Latin America's third-largest economy. Duhalde, a stocky 60-year-old who became the fifth president in two weeks, faces a nation plagued by bloody protests and looting as bankruptcies and unemployment grow and Argentina heads for a record sovereign debt default. ``My commitment from today is to finish with an economic model that has brought desperation to the ...