On the superscripts...
E.g. [link|http://www.usatoday.com/news/bushdocs/9-Miscellaneous.pdf|This] (via [link|http://www.dailykos.com|http://www.dailykos.com] ) - see page 3. The "Pilot Trainee 111th..." line is the only place in this 19 page .pdf that I've seen "th" as a superscript. The typewriter used for this entry apparently had a "th" superscript glyph. But note that all of the text in this 19-page package uses a fixed-pitch font.
If someone could find some other 1972-vintage documents that show a "th" superscript with a proportional font, the CBS documents wouldn't look so extraordinary. Have you seen such a document?
(Also, on page 12 there seems to be an unobscured version of Bush's Social Security Number (but with too many digits). I wonder what else is buried there for the dilligent investigator.)
I think the White House isn't questioning them, not because they think they're genuine, but because they don't want to have a horse in this particular race at this point. They're passing them out to try to look like they're not hiding anything from the press; I wouldn't take it as a stamp of approval.
My $0.02.
[edit:]
A more complete copy of Bush's personnel records is [link|http://www.usatoday.com/news/bushdocs/11-1_2004_Personnel_File.pdf|here] (26 page .pdf). Page 2 has more examples of the superscript "th" - but again in a fixed pitch font. It must have been prepared after November 21, 1974 - the last entry date.
Cheers,
Scott.
