Copyright 2018 NPR. To see more, visit ROBERT SIEGEL, HOST: At a Senate hearing this morning, the secretary of the Army, John McHugh, talked about the Fort Hood shooting and the shooter, Ivan Lopez. He did have two deployments, including one four-month, approximately four-month deployment to Iraq as a truck driver. His records show no wounds, no involvement - direct involvement in combat. NPR's Daniel Zwerdling has been trying to uncover more of Ivan Lopez's past, and he joins me now. And, Danny, it sounds like this is not a case of a soldier's mental health problems being linked to service in Iraq. DANIEL ZWERDLING, BYLINE: Robert, I think it's way too early to say that. Military officials have been saying that to reporters all day long. And the implication seems to be that Lopez's mental health troubles had nothing to do with his service in the Army or the war. As you know, military officials have been very sensitive about this issue because their own studies have shown that large
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