It may seem insensitive to indiscriminately bomb heavily a city that Isis has taken over but it will need to be done to cut off their command and control. If a location they are occupying is destroyed along with all structures they will not be able to coordinate their fighters anywhere else. After the buildings are reduced to rubble then we can send in ground troops to mop up. If this is done to Syria then maybe other countries in the region will finally decide to destroy Isis in there countries so we don't have to destroy them so completely. Most likely we would have to destroy cities in Iraq also to show that we mean business. The only way to eliminate radical Islamic terrorists in the world is to kill them, they cannot be negotiated with through diplomacy, the only thing they want is to bring death to all who don't believe as they do. What I thought should be done years ago about turning the entire region to a sheet of glass is not feasible because of radioactive fallout for the world. The same thing can be accomplished with normal bombs and we can produce enough of them to reduce the areas to rubble, maybe not a sheet of glass but massive rubble.