The argument goes like this: UNIFIL had one mission, which was to disarm and disband any military force in Lebanon south of the Litani River that was not Lebanon's army. UNIFIL has not done this. This is known and well-documented. Hezbollah regularly fires rockets and missiles into Israel. Hezbollah has built bunkers within sight of UNIFILs own posts. If true, this is not only a clear, systemic failure of their mission, but such an egregious failure that their presence is actually dangerous to civilians.