This caused Palestinian fans of terror to protest in Nablus and Jenin, and Hamas condemned the arrest.
Meanwhile, the Palestinian Authority also confiscated a cache of weapons in Hebron, plus "the arrest of a number of outlaws and instigators of sedition and security chaos in the Hebron Governorate."
So what's going on? Why is the PA suddenly acting how it is supposed to when it has been openly supportive of terror recently?
The reason is that Mahmoud Abbas is in New York this week to give a speech at the UN. He has been under pressure from the US and Israel to flex his muscles against terror, and he doesn't want to look bad when he gives his annual anti-Israel speech to the world.
Next week, we'll find out if this is a real change or just optics. My bet is the latter.