A medical equivocation: What kind of pus is it?

The Geek is asking a question and provides a possible answer:

Fewer Christians? Blame the Joooooosssssssssss!

It happens like clockwork at this time every year. There are numerous stories in all of the major media outlets on how Israel is stifling Christianity in Bethlehem and other historic Christian towns. The fact that it's not really Israel that's doing this is immaterial, as the MSM refuses to deviate from its narrative that Israel alone is persecuting Christians in the Holy Land: http://www.ynetnews.com/articles/0,7340,L-3486144,00.html.

There was even an Op-Ed from the normally reliable Wall Street Journal yesterday (to which I intentionally did not link) on how Israel is walling off Bethlehem from Christians, even though the writer casually admitted in the article that he hadn't been to Israel in seven years, so he really couldn't be sure what was going on there.All of these articles are part of the same project, which is to subtly and surreptitiously delegitimize Israel by praying on emotions of those who would otherwise support the state.

I am wondering about this concerted, media "aleihum", more than usually dense concentration of anti-Israel and by inference, anti-Jewish venomous bile. What is it, an abscess or an empyema?

An empyema is a collection of pus within a naturally existing anatomical cavity.

An abscess is a collection of pus that has accumulated in a cavity formed by the tissue on the basis of an infectious process (usually caused by bacteria or parasites) or other foreign materials (e.g. splinters or bullet wounds).

So which is it, a genetically-inscribed niche, or a dent caused by infection?