Welcome back to Foreign Policy ’s Latin America Brief. The highlights this week: Chinese firm BYD reshapes Brazil’s auto industry , Argentine health officials race to find the origins of the hantavirus outbreak on a cruise ship, and the United States indicts a Mexican governor . BYD’s Brazil Breakthrough Last year, in one of Brazil’s most popular soap operas, a billionaire gifted her boyfriend a car: the BYD Song Pro. Her chauffeur drove a more affordable BYD model. This was not a coincidence,