the source confidential. CBS investigations prior to airing the segment Mapes and her colleagues began interviewing people who might be able to corroborate the information in the documents, while also retaining four forensic document experts, Marcel J. Matley, James J. Pierce, Emily Will, and Linda James, to determine the validity of the memos. On September 5, CBS interviewed Killian's friend Robert Strong, who ran the Texas Air National Guard administrative office. Among other issues covered in his interview with Rather and Mapes, Strong was asked if he thought the documents were genuine. Strong stated, "they are compatible with the way business was done at the time. They are compatible with the man that I remember Jerry Killian being." Strong had first seen the documents twenty minutes earlier and also said he had no personal knowledge of their content; he later claimed he had been told to assume the content of the documents was accurate. On September 6, CBS interviewed General Robert "Bobby" Hodges, a former officer at the Texas Air National Guard and Killian's immediate superior at the time. Hodges declined CBS' request for an on-camera interview, and Mapes read the documents to him over the telephone—or perhaps only portions of the documents; his recollection and Mapes's differed. According to Mapes, Hodges agreed with CBS's assessment that the documents were real, and CBS reported that Hodges stated that these were "the things that Killian had expressed to me at the time". However, according to Hodges, when Mapes read portions of the memos to him he simply stated, "well if he wrote them, that's what he felt", and he stated he never confirmed the validity of the content of the documents. General Hodges later asserted to the investigatory panel that he told Mapes that Killian had never, to his knowledge, ordered anyone to take a physical and that he had never been pressured regarding Lieutenant Bush, as the documents alleged. Hodges also claims that when CBS interviewed him, he thought the memos were handwritten, not typed, and following the September 8 broadcast, when Hodges had seen the documents and heard of claims of forgery by Killian's wife and son, he was "convinced they were not authentic" and told Rather and Mapes on September 10. Response of the document examiners Prior to airing, all four of the examiners responded to Mapes' request for document analysis, though only two to Mapes directly: Emily