WASHINGTON (AP) -- Defense Secretary Robert Gates is putting former Army Secretary Togo West and former Navy chief Vernon Clark in charge of a broad Pentagon review of the circumstances surrounding the Fort Hood shootings.

Gates says the 45-day review will look into gaps in how the military identifies service members who might be a threat to others. It also will look at personnel and medical programs, and at how well U.S. bases are able to respond to mass casualty incidents.

West was Army secretary in the mid-1990s and later became secretary of veterans affairs. Clark was the chief of naval operations from 2000 to 2005.

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