The accounts of torture and murder being heard by South Africa's Reconciliation Commision are a grim reminder of past life under the country's white minority government. The end of apartheit brings hope, but also a new set of problems. A South African singing group called "The Christian Explainers" is on a U.S. tour to call attention to the rise of drug violence that is afflicting the country. Minnesota Public Radio's Dan Olson has more ANNCR TAG: The Christian Explainers' first Twin Cities performance is Thursday evening (tonight) in St. Paul at the Minnesota History Center auditorium. Eddie Jacobs is alternately hopeful and fearful about the future fo