Heads of State and C.E.O.s in Davos Beware: 6 Feet of Snow in 6 Days<br />Swiss Rail began unloading Davos-bound passengers from their express trains, taking them on a half-hour bus trip on back roads around the blockage<br />and then loading them onto a crowded red commuter train that ran the rest of the way into Davos.<br />“What shall we do,” the mayor of Davos, Tarzisius Caviezel, said at a news conference on Monday, admitting he was at a loss for how to respond.<br />Linda P. Fried, the dean of Columbia University’s Mailman School of Public Health, allowed three hours at midday on Monday<br />to travel from her hotel to the uncrowded registration center nearby and then a few blocks to the conference.