sentences:  They found mold, rats and the neglect of outpatient soldiers who were stuck in bureaucratic limbo on the ground of Walter Reed.The stories sparked outrage, resulting in the resignation of Secretary of the Army, Francis J. Harvey.Congressional investigations were led by Rep. Henry Waxman (D-CA), who chaired the United States House Committee on Oversight and Government Reform in the House and by Sen. Carl Levin (D-MI), on the Senate side, who chaired the United States Senate Committee on Armed Services.