I concur & why it was also feasible that CBS didn't get two documents that USA Today did - but now we know they got at least one of those extra two that USA Today did, too :)
I recently checked the cretae and modification dates of the PDF's at CBS and USA Today.
CBS's documents were created 8/9/2004 at around 9:00 PM
USA Today's were created on 9/9/2004 at around 1:00 PM and were MODIFIED on 9/11/2004.
Also of note is that the CBS Documents have a page size of 13 x 18 (approximate as the vary slightly) and the USA todays have a size of 8.31 x 10.33)