Pentagon acquisition chief Ellen Lord said today the United States is working on how it might keep selling weapons to Turkey, despite growing tensions over Ankara's ongoing military operation against Kurdish forces in northern Syria. Lord said, however, the Defense Department remains "steadfast" in its position that Turkey be removed from the F-35 Joint Strike Fighter program by March 2020. Turkey was booted from the program earlier this year over its purchase of the Russian-made S-400 missile system, which U.S...