Guardian: I spent five minutes in a small concrete corridor in Switzerland this week and watched the following people pass by: Henry Kissinger, a Chinese telecoms boss, an executive from the Campbell soup company, a rabbi, a Brazilian oil baron, computer pioneer Nicholas Negroponte, a team of aides looking for UN secretary general Ban ki-moon, Peter Mandelson, an up and coming Palestinian writer, a Brazilian brain scientist, a vice-chairman of Merrill Lynch and a member of the Bill and Melinda Gates …