The word "fair" conjures up images of merry-go-rounds, fluffy, pink cones of spun sugar, candy apples and popcorn. Not if you are invited to the White House. Excited Washington DC school children, disembarking from yellow school buses on the South Lawn of 1600 Pennsylvania Avenue were in for a big shock! The Obamas' idea of a kid's fair included sermons extolling the benefits of replacing cake and French fries with vegetables. Imagine finding out you have the afternoon off and are going to the White House for a "fair." When you get there you realize the festivities include Michelle doing...