it is tuesday, may 24th. we re getting a much better picture of the scope of the disaster that we re talking about in joplin, missouri, today where our ali velshi is. good morning. what are you seeing there? good morning, kiran, christine. i wish i could tell you it s a good morning in joplin. it simply isn t. over my shoulder you can see the remains of the medical center which in this vast area is really the only building of significance that is still standing. let s begin this morning with some breaking news, however. president obama in london this morning, is announcing that he will be coming here. he will be visiting joplin this sunday as soon as he gets back from his european trip. the president says he wants the folks here to know the government will do absolutely everything they can to make sure that there s recovery here. 30% of joplin is gone. it s decimated. right now hundreds of police, fire fighters, national guardsmen, other volunteers are searching for survi