JERUSALEM — Late last month, on a Friday night, a young Tel Aviv couple walked through the barren but well-lit cement rectangle that is Rabin Square, adjacent to City Hall. Upon entering the garage, they were confronted by a slender young man wielding a knife. He drew them into the bathrooms and ordered them to have sex before raping the woman and stealing both their cell phones. Residents of Tel Aviv — and, in fact, citizens of Israel — were deeply shaken. Whereas international media covers Israel as a violent, conflictive place, daily life in Israel has long been placid and, sometimes, even village-like.