updated_at with download count

Hello Flagship Developers,
I have no confirmation of this being a bug, but browsing the flagship database today, I noticed a suspicious trend in the dates in the 'updated' column when browsing categories in grid view or looking at the front page. large number of documents marked as having been last updated 4/29/10 (today), and a smaller but still significant number marked 4/28/10.

For example, the Guide to Student Government, all of the documents currently on the homepage, and all the documents at http://docs.studentsenate.rpi.edu/categories/111 all are marked 4/29/10 or 4/28/10.

Upon closer inspection, I notice that more realistic dates are given in the individual document pages, next to the revisions. Perhaps some record property has been modified, but not the document itself? In that case, it might be more helpful to show the date the actual file was last updated, so that students don't suddenly think the J-board has been sneaking changes into their decisions.