Number of hits in Google News search for the phrase "extremist settlers": 106
Number of hits in Google News search for the phrase "extremist Palestinians": 1
Number of hits in Google News search for the phrase "moderate settlers": 0
Number of hits in Google News search for the phrase "moderate Palestinians": 125
In other words, people who advocate genocide of Jews, who danced on 9/11, who cheered Saddam's SCUD missiles, who burn the American flag regularly, who idolize people who blow up pizza shops, who name public squares after terrorists, who prefer Hamas to any non-Muslim - they don't have an extremist among them!
So what crimes are the extremists in this conflict doing? Read the articles: they are doing such heinous crimes as stopping traffic on Israel's highways, protesting and getting hit by moderate Palestinian stones, building houses, and, um, that's about it.
A reasonable question to all "news" sources would be why wouldn't they use scare quotes when talking about "extremist" Jewish settlers when they will use them while talking about Muslim terrorists?