Because it is news and therefore too boring. This question was raised about the investigation into the Plame leak as well, and why updates are not reported.LeonhardEuler said:Because no interesting changes have occured recently. It really wouldn't be news to put "Saddam is still awaiting trial" in the paper every day.
Ratings are higher if the media reports about Natalee Holloway every day even if nothing new has transpired, after all the Michael Jackson trial ended (though this was dragged out longer with stories about regretful jurors). Unfortunately we have very shallow people in the US.