First lady Michelle Obama high-fives a player during a sport clinic with area youths and members of the Baltimore Orioles and Tampa Bay Rays baseball teams, Tuesday, July 20, 2010, at Oriole Park at Camden Yards in Baltimore. Obama was taking part in an event with Major League Baseball and the MLB Players Association that will team with the White House in the Let's Move campaign, which promotes exercise and healthy eating for America's youth. (AP Photo/Rob Carr)

Photo by: Rob Carr

First lady Michelle Obama high-fives a player during a sport clinic with area youths and members of the Baltimore Orioles and Tampa Bay Rays baseball teams, Tuesday, July 20, 2010, at Oriole Park at Camden Yards in Baltimore. Obama was taking part in an event with Major League Baseball and the MLB Players Association that will team with the White House in the Let's Move campaign, which promotes exercise and healthy eating for America's youth. (AP Photo/Rob Carr)