EMORY, Va. (AP) _ Sen. John Warner assured Emory & Henry College graduates Saturday that a committee he chairs is committed to holding accountable those responsible for prisoner abuses at Abu Ghraib prison in Iraq.

Warner, chairman of the Senate Armed Services Committee, called the abuses ``one of the most tragic chapters in our otherwise proud military history.'' He said those responsible ``up and down the chain of command'' will be held accountable.

He said the atrocities are the work of a small number of people and do not represent ``99.9 percent of the people in the Armed Forces who are carrying out this war with courage and with great sacrifice.''

Warner made the remarks to about 1,500 people, including 202 Emory & Henry graduates. The crowd included five of the seven Emory & Henry student reservists who have been serving in Iraq during the past year.

The events of Sept. 11, 2001, changed how Americans perceive their security, Warner said.

``We're no longer sheltered as a nation by two big oceans,'' he said.

Warner said Americans should turn their fears into actions, suggesting that education provides the best weapon against fear and for peace.