Or what about enlarged?...Enlarging makes 'em fuzzier and look older, although they may do that so they can post them on a board during editorial meetings.
Can't say for certain.
The CBS Doc's are larger and were created on the 8th of September (could be a default setting in Adobe which caused the larger page size . . .) Also, if you lool closely at the right margin / bottom margin of the CBS doc's - you will see "white space" which would tend to be the lid of the scanner instead of the paper - maybe they didn't crop the images??
The USA Today document(s) were created on the 9th and the page size conforms closely to what you would expect. Notice - no white space!! BUT for some reason, the PDF file was modified on the 11th - impossible to say why.
If looked into the "source code" of the PDF's, but can find no information concerning what was modified.