of air traffic control operational errors" in the "safe separation between aircraft under their control." In 2006, the Office of Special Counsel announced that it was able to win reemployment and back pay for an injured Iraq war veteran who "sustained serious injuries in the line of fire." According to an Office of Special Counsel press release, "When honorably discharged from military service, his injuries prevented Harris [the veteran] from returning to the job he held for ten years as a Postal Carrier at a U.S. Post Office in Mobile, Alabama. Rather than looking for an alternate position for him, though, the postmaster sent Harris a letter saying that there was no work available for him," in violation of USERRA. The agency attracted public attention in April 2007 when it began an investigation of alleged White House political pressure on federal civil servants. Senior Bush political adviser Karl Rove was reported to be a subject of the investigation. 2010s After Bloch's tenure, the agency's website was modified to make it clear that OSC viewed sexual orientation and gender discrimination as prohibited personnel practices: "OSC has jurisdiction over allegations of discrimination based on conduct that does not affect job performance, which includes sexual orientation discrimination. In certain cases, EEOC may also have jurisdiction over claims of sexual orientation discrimination, such as a claim of sexual stereotyping, i.e., discrimination for failing to conform to a gender stereotype." After becoming Special Counsel, Carolyn Lerner received plaudits during her tenure for intense activity, public response, and revitalization of the agency. She greatly expanded the agency's Alternative Dispute Resolution Unit. In fiscal year 2011, the number of successful mediations increased from 50 percent to 77 percent, and nearly 3.5 times the number of mediations yielded settlement. In July and October 2011, OSC requested and obtained stays from the MSPB in three whistleblower retaliation cases—those of David Butterfield of the Department of Homeland Security, Franz Gayl of the U.S. Marine Corps and Paul T. Hardy, a member of the U.S. Public Health Service. On a matter related to the case of Franz Gayl, OSC filed an amicus brief in October with the MSPB, arguing that the Board should afford greater due process protections to employees who are suspended without pay because of the suspension of a security clearance. Also in October, Lerner called for reform of the Hatch Act, which OSC is charged with enforcing. Lerner