I started reading the stuff about the CBS documents on W’s National Guard service, mostly because the situation seemed so odd. The best thing I found on the issue of authenticity is the Flash overlay between a CBS document and the same thing produced by MS Word using default settings. (I’m told versions by people other than Little Green Footballs are also available.) The next best thing is a screen grab of the CBS evidence for a key point in their defense, that at the time some military typewriters did produce raised superscripts.
In 1973 it would no doubt have been possible to produce the CBS documents at some cost, with some degree of effort, and for some weird reason. But even assuming all other issues away, how likely is it that by chance anything produced in 1973 would turn out to look just like default MS Word documents? The CBS defense, like most defenses of bad conduct, just makes things worse. Their comparison shows what a raised superscript done by a typewriter at the time would have looked like. It would have been placed within and not above the row of lettering produced by the key striking the roller. If it had been above, the key striking the roller would have struck the page at a slant and not given a good impression. So the CBS defense drives home the point it was intended to rebut.
It’s clear the documents are forgeries. CBS willingness to treat them as a major story without seriously investigating their authenticity, and their evident belief they can bluff and stonewall their way out of the situation, is extraordinary. It seems it must show something. But what?