I agree, and that is definitely the strength of FOX news, but its also its weakness.
FOX has a tendency to follow the rest of the media around rather than report independently.
There are lots of stories that could be done about how OUR POWs are treated when they are taken. There are tons of other people who were taken hostage like Nick Berg. An Italian man was executed in a video as well, but you don't hear about it.
If FOX NEWS would only report the possitive it could not call it self fair and balanced