U.S. Nuclear Regulatory Commission Chairman Gregory Jaczko is causing “serious damage” to the agency and is “creating a chilled work environment,” his four commission colleagues said.

Jaczko has bullied career staff and attempted to intimidate an independent panel of technical advisers, the other NRC commissioners said in an Oct. 13 letter to White House Chief of Staff William Daley, released yesterday by Republicans on the House Oversight and Government Reform Committee.

“In a long series of very troubling actions taken by Chairman Jaczko, he has undermined the ability of the commission to function,” Commissioners George Apostolakis, William Magwood IV, William Ostendorff and Kristine Svinicki said in the letter that described their “grave concerns.”

Read the full article at Bloomberg.