BIG CREEK, Ky. — The manager of a part-time census taker who died under mysterious circumstances in southeastern Kentucky says other workers are requesting to visit houses in teams rather than alone. Wayne Hatcher is regional director of the U.S. Census Bureau's office in Charlotte, N.C. He was at a memorial Sunday in the Daniel Boone National Forest near the spot Bill Sparkman's body was found one month ago with the word "Fed" scrawled on his chest, likely in pen. Sparkman was tied