What is newsworthy?

The situation in Darfur has received a disappointing and small amount of coverage from news organizations such as CNN, Fox News, and the New York Times in the past weeks, however this weeks' coverage has once again become plentiful with the tragic death of 10 peacekeepers when Darfur rebels attacked their base in Darfur. Although this is a very tragic event, it begs the question of why 10 people had to die for the media to continue it's coverage of a region that has no doubt seen countless deaths from within Darfur recently. The articles mentions peacekeepers that were taken and/or killed in Darfur, and although it is very important to talk about those who gave their lives trying to help, are the lives of those living in fear any less newsworthy?