Rescuers succeed in evacuating sick workers at the South Pole, Washington Post
"For the third time ever, rescue workers have successfully evacuated someone from the South Pole during the brutal Antarctic winter, the National Science Foundation said. A plane carrying two sick workers from the Amundsen-Scott research station arrived on the Antarctic Coast early Wednesday afternoon, following a harrowing 10-hour flight across the continent. Both workers require medical attention not available at the station, prompting the rare rescue effort. ... Typically, none of the 50 or so people who overwinter at Amundsen-Scott can leave between February and October. One former worker described the South Pole as more inaccessible than the International Space Station."
"NSF determined that an evacuation was warranted and called on Calgary-based Kenn Borek Air Ltd., which has a U.S. government contract to fly in support of U.S. Antarctic Program science, to conduct this mission."
Keith's note: I have flown in Kenn Borek Twin Otter planes multiple times in the arctic. More than once my pilot was an antarctic veteran - in once case, a mid-winter medical rescue pilot. These folks really, really know their stuff.