Fieldwork in Afghanistan is not like most geology fieldwork. “When I landed, the first thing I had to do was to put on a bulletproof vest,” says Tom Mack. He was part of a U.S. Geological Survey team that evaluated water resources in the Kabul Basin, in the north-central part of eastern Afghanistan, a couple of years ago. “It was strange to wear the vest, but eventually you get used to it.” There was a lot to get used to, he says. No matter where Mack went, he had to get special permission to be there.