Leading off today is the news, or lack thereof, on the missing Malaysian Airlines flight. The hunt continues as the search area widens. Then, the shocking cellphone footage of a circus accident that injured nine acrobats. In sports, the Clippers advanced to the second round of the NBA playoffs despite the turmoil surrounding owner Donald Sterling after his racist remarks. Kareem Abdul-Jabbar weighs in on racism inside and out of sports. To beat the Mondays, we end with a joke, courtesy of President Barack Obama who let them have it at the White House Correspondents Association dinner Saturday night. Here are the 17 meanest jokes from the annual event.