Salon looked hard for evidence of the president’s mystery bulge this evening, but for much of the debate, on the ABC feed we screened, Bush’s back remained out of view. At the end, though, as the president crossed the stage to thank his opponent, we caught this glimpse of something strange pushing out of the commander in chief’s tailored coat. Is it part of an in-ear prompting device? Is it a back brace? Body armor? Confirmation that Bush is an alien? The mystery deepens …