Army Secretary Dan Driscoll told lawmakers today he expects "meaningful movement" within weeks on the Department of Homeland Security reimbursing the service for border security missions amid a multibillion-dollar shortfall. Officials told ABC News this week that the service faces a $4 billion to $6 billion shortfall due to the costs associated with the Iran war and securing the southern U.S. border, which is forcing the Army to cut back on personnel costs and abruptly cancel deployments,...