Things were booming in Brazil seven years ago when when Rio de Janeiro was awarded the 2016 Summer Olympics. Now, the honor seems less like a crown and more like a yoke. As the country preps for the opening on Aug. 5, the economy is in free fall, and a huge corruption scandal is darkening the skies. Impeachment proceedings are underway against President Dilma Rousseff. To make things worse, there’s panic over a mosquito-borne virus linked to brain damage in infants.