FILE - In this Dec. 15, 2011 file photo, Nuclear Regulatory Commission (NRC) Chairman Gregory Jaczko prepares to testify on Capitol Hill in Washington. An internal investigation has con

 

              FILE - In this Dec. 15, 2011 file photo, Nuclear Regulatory Commission (NRC) Chairman Gregory Jaczko prepares to testify on Capitol Hill in Washington. An internal investigation has con
FILE - In this Dec. 15, 2011 file photo, Nuclear Regulatory Commission (NRC) Chairman Gregory Jaczko prepares to testify on Capitol Hill in Washington. An internal investigation has concluded that Jaczko, the departing chairman of the NRC engaged in bullying and intimidation, creating a tense working environment at the agency. (AP Photo/Susan Walsh)