Israel exchanges Hamas prisoners for Fatah's in Gaza

Yesterday, we were puzzled by Israel releasing from jail three high-ranking Hamas members held in administrative detention: two ministers and one MP. The deal became clear today when Hamas released 150-200 Fatah prisoners it took in Gaza days ago. Israel released her Hamas prisoners so that Hamas releases its Fatah prisoners. Israel held the high-ticket Hamas prisoners to exchange for Shalit.
Israel’s unusual cooperation with Fatah is probably due to the fact that Israel aided Fatah in the attempted putsch in Gaza, which Hamas has foiled. Fatah, accordingly, blamed Israel for the arrest of its supporters in Gaza, and Israel joined in their release.