a blanket exemption (categorical exclusion) from having to provide environmental impact statements. The National Oceanic and Atmospheric Administration (NOAA) issued strong warnings about the risks posed by such drilling and in a 2009 letter, accused MMS of understating the likelihood and potential consequences of a major spill in the Gulf of Mexico. The letter further accused MMS of highlighting the safety of offshore drilling while understating the risks and impact of spills and playing down the fact that spills had been increasing. Both current and former MMS staff scientists said their reports were overruled and altered if they found high risk of accident or environmental impact. Kieran Suckling, director of the Center for Biological Diversity, said, "MMS has given up any pretense of regulating the offshore oil industry. The agency seems to think its mission is to help the oil industry evade environmental laws". After the Deepwater accident occurred, Salazar said he would delay granting any further drilling permits. Three weeks later, at least five more permits had been issued by the minerals agency. In March 2011, BOEMRE began issuing more offshore drilling permits in the Gulf of Mexico. Michael Bromwich, head of BOEMRE, said he was disturbed by the speed at which some oil and gas companies were shrugging off Deepwater Horizon as "a complete aberration, a perfect storm, one in a million", but would nonetheless soon be granting more permits to drill for oil and gas in the gulf. Federal Aviation Administration Since the Federal Aviation Administration (FAA) charter was amended in 1996, its sole focus has been the regulation of safety. A report by the U.S. Department of Transportation found that FAA managers had allowed Southwest Airlines to fly 46 airplanes in 2006 and 2007 that were overdue for safety inspections, ignoring concerns raised by inspectors. Audits of other airlines resulted in two airlines grounding hundreds of planes, causing thousands of flight cancellations. The House Transportation and Infrastructure Committee investigated the matter after two FAA whistleblowers, inspectors Charalambe "Bobby" Boutris and Douglas E. Peters, contacted them. Boutris said he attempted to ground Southwest after finding cracks in the fuselage, but was prevented by supervisors he said were friendly with the airline. The committee subsequently held hearings in April 2008. James Oberstar, former chairman of the committee said its investigation uncovered a pattern of regulatory abuse and widespread regulatory lapses, allowing 117 aircraft to be operated commercially although