Monday on The World, we look at Rio through a Russian lens: A doping scandal has left the Russian Olympic team decimated. Many Russian athletes are not allowed to participate, and those who are competing have been taking a lot of flak. Also, have you been wondering what those circular purple marks are on some of the US Olympic athletes, including swimming great Michael Phelps? They come from a centuries-old form of therapy called cupping. Plus, an Iranian American musician who creates all of his tunes on his iPhone.
