Bloomberg: Every week, Senator Sheldon Whitehouse, a Rhode Island Democrat, heads to the floor of the Senate, sets up an easel and some poster board, and delivers a speech. He works hard on these speeches. Theyre deeply researched and beautifully crafted. He delivers them with passion -- to a mostly empty room. His colleagues figure they have better things to do than listen. But 100 years from now, when our grandchildren look back and try to understand what we were doing while the world burned, these speeches...