For Israelis and Jews in the U.A.E., an Eroding Sense of Security

The Emirates’ reputation as a haven was shaken by what the authorities said was a plot last month aimed at crashing a flight from Dubai to Tel Aviv.Tamar Smulowicz, an Israeli citizen, moved to the United Arab Emirates after the two countries normalized relations. But regional wars and domestic threats are testing a sense of safety for Israelis and Jews.