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The head of military efforts to detect and destroy improvised explosives is winding up a trip to Baghdad where he took measure of how the U.S. can help Iraqi security forces deal with the lethal threat of bombs left behind by retreating Islamic State militants.Army Lt. Gen. Michael Shields, chief of the Joint Improvised-Threat Defeat Agency, is scheduled to return to JIDA headquarters next week and deliver a report to his staff of uniformed personnel and civilian engineers on what…
