The noblesse-oblige Left invades American life. The Obama presidency is starting to feel like an out-of-body experience. What, exactly, is going on? Earlier this summer, Mr. Obama began touring the country—Galesburg, Ill., Warrensburg, Mo., and other down-and-out burgs—outputting speeches about the plight of the middle class. On Thursday he gives the speech in Buffalo and then in Syracuse, N.Y., at Henninger High