This is a joint investigation with Der Spiegel, ZDF, and Der Standard.In the city of Lipetsk, 300 miles south of Moscow, stands a yellow chapel. Somewhat out of place next to a modern mirrored-window building, situated on the lip of a roundabout, the 200 year-old Church of Holy Transfiguration caters to the faithful of a large mining town that dates back to the era of Peter the Great. Inside, Father Konstantin Baiazov performs the customary rites and rituals for his flock. Dark and bearded, with...