Because it is news that is over 1 month old. How far back would you like the media to cover stories when there isn't any new news to report about them?
The mainstream media is so far in the bag for Obama that it's sickening. Just look at the upcoming "infomercial" for Obamacare on the All Barack Channel (ABC). They won't even allow paid commercial time go to opponents of the plan. How's that for Fair and Balanced?