Today marks 100 days before the start of the Rio de Janeiro Olympics. More than 95 percent of the venues have been completed, and test events for more than 40 Olympic and Paralympic sports have been held. The Olympic torch will be handed over to Brazil's Olympic Organizing Committee at a ceremony in Greece today.However, Brazil is embroiled in political turmoil. President Dilma Rousseff is facing impeachment proceedings after being accused of involvement in manipulating government accounts. The political crisis has led to the resignation of sports minister George Hilton and the head of the National Force of Public Security. The Olympic games wil be held while the threat of Zika virun looms large in Latin America.