Nobel Prize for promises?

I was dismayed when I heard Obama was given the Nobel Peace Prize. A shock, really, to think that a president carrying on wars in two countries and launching military action in a third country (Pakistan), would be given a peace prize. But then I recalled that Woodrow Wilson, Theodore Roosevelt and Henry Kissinger had all received Nobel Peace Prizes. The Nobel Committee is famous for its superficial estimates and for its susceptibility to rhetoric and empty gestures, while ignoring blatant violations of world peace. Yes, Wilson gets credit for the League of Nations - that ineffectual body which did nothing to prevent war. But he also bombarded the Mexican coast, sent troops to occupy Haiti and the Dominican Republic and brought the US into the slaughterhouse of Europe in the first World War - surely, among stupid and deadly wars, at the top of the list.