Sderot & Tel Aviv - A Lesson From The Gemara
They once said to Shmuel: There is a deadly plaque in Bei Chozaei, a town in Babylonia. He decreed a fast for his city.
They said to him: But it is far away from where we live, and we are not in danger! He said to them: There is no river crossing here to halt its spread, and there is therefore a danger of it spreading to our area.