Brazilians return with force to streets to demand Rousseff's exit

By Daniel Flynn and Alonso Soto SAO PAULO/BRASILIA (Reuters) - Protesters poured en masse onto the streets of Brazil's major cities on Sunday to demand the removal of President Dilma Rousseff, raising the stakes for the leftist leader as she struggles to pull the country out of its worst political and economic crisis in a generation. The demonstrations were the latest in a wave of anti-government rallies that lost momentum late last year but has gained strength as a sweeping corruption investiga