The Telegraph has a nice write-up about the people who make sure GPS stays up and humming. The British newspaper profiled the 2nd Space Operations Squadron at Schreiver Air Force Base, Colo., in an article carrying a headline that pretty much sums up the squadron’s contribution to everyday life: “We’d be lost without them.” The article begins with a description of Joshua Williams, a payload systems operator: “Three years ago, it was still illegal for him to buy a drink. Two years before that, he was back home in Virginia learning to drive. And yet today he’s responsible for a…