How come we don't hear of the 14 other towns and cities under siege in Syria?

"The siege of more than 15 towns, including Madaya, by government forces and rebel groups resulting in starvation is “not just a war crime but a crime against humanity if proven in court,” the UN human rights chief added."  One thing is for sure: none of the Western correspondents crowding in Beirut has ever reported on any of the other 14 towns.