Mother Jones: One icy morning in February 2012, Hillary Clinton's plane touched down in the Bulgarian capital, Sofia, which was just digging out from a fierce blizzard. Wrapped in a thick coat, the secretary of state descended the stairs to the snow-covered tarmac, where she and her aides piled into a motorcade bound for the presidential palace. That afternoon, they huddled with Bulgarian leaders, including Prime Minister Boyko Borissov, discussing everything from Syria's bloody civil war to their joint search...