A new deal to include Israeli-made electronic warfare equipment on F-35 Joint Strike Fighters that the country plans to buy is part of a U.S. effort to ensure Israel retains its military edge in the region, according to a senior State Department official. At a breakfast with reporters in Washington, Assistant Secretary of the Bureau of Political-Military Affairs Andrew Shapiro declined to comment on the details of the arrangement, which Reuters reported Thursday, but he added, "I don't think the...