USA TODAY Sports reporter Rachel Axon is joined by a slew of guests to dissect the many issues facing Rio as the Olympics arrive. Rachel takes a look at the cost of these Olympics on Rio, how the city’s issues could play out during the Games and what will happen when the world turns its focus away after closing ceremonies on Aug. 21.Guests include: reporter and Rio resident Taylor Barnes; Andrew Zimbalist, Smith College professor and author of "Circus Maximus: The Economic Gamble Behind Hosting the Olympics and the World Cup"; Jules Boykoff, Pacific University politics teacher, author of "Power Games: A political history of the Olympics" and former U.S. men's soccer player; Elizabeth Talbot, an associate professor of medicine in the section of infectious disease and international health at Dartmouth and expert on outbreak and disease control; and Renata Neder, senior researcher and human rights adviser at Amnesty International’s office in Brazil.Subscribe to and rate us on iTunes; follow us on Twitter @RachelAxon.