"A Republican operative in Alabama says Karl Rove asked her to try to prove the state's Democratic governor was unfaithful to his wife in an effort to thwart the highly successful politician's re-election," CBS's Scott Pelley reports for 60 Minutes. "Rove's attempt to smear Don Siegelman was part of a Republican campaign to ruin him that finally succeeded in imprisoning him, says the operative, Jill Simpson."...