All these recent attacks make me worry for my best friend. He is going to Haifa (actually, her family lives a few miles away from Haifa) with his new girlfriend for a week after Christmas. She is 7th generation from that area, and he is jewish as well, but from the States.
But, as he said, terrorist's goal is to strike fear and disrupt normal life. Why worry about suicide bombers and the like? If you do, the terrorist are winning.