Chairmen of two California legislative committees, responding to a recent Bee investigation, said this week that they would probe prison health care staffing as managed by receiver J. Clark Kelso, who operates under a federal court order. The Bee reported that the prisons last year spent more than $152 million on temporary clinical employees, such as doctors and nurses. Another $170 million went to overtime for clinicians and guards who accompany inmates to appointments. Some nurses work such long hours that they fall asleep on the job, workers and executives said. Assemblyman Hector De La Torre, D-South Gate, who chairs...