Well the Jews tend to be a bit more liberal about things than Americans. When Arabs fire bullets into cars and houses from their living rooms, Jews tend to build bullet barriers.
As an American, I would have used carpet bombing to level the hostile village. I tend to want to respond to an act of war with war, not waste a lot of money trying to stop the bullets. It seems far more effective to plant the shooters 6 feet under. After all, the shooters just move to another building to bypass the wall. This makes the Jews build walls the length of whole towns.
The fence is 99.5 percent chain link fence to stop belly bombs, and .5 percent to stop snipers.
Would it not make more sense to send the Arabs back to Arabia?