Kevin Burton was a Navy linguist when, suddenly, he started losing his sight. He took his new disability as an opportunity to become an elite athlete at the Sochi Paralympic games, in an event that requires shooting a rifle.
More than 200 international medical relief groups have sent teams to help the people of Haiti after the devastating earthquake. And delivering aid in Haiti continues to be difficult, we get an update from the BBC's Mike Wooldridge in Port-au-Prince.
Take your seat now for the Geo Quiz: the sports stadium we'd like you to name this time borrows its name from Rome's famous amphitheater. It's been home to three professional sports teams: The Athletics, the Raiders and the Earthquakes.