Former Secretary of State and Vietnam veteran Colin Powell (R) and Senator Chuck Hagel (R-NE) stand at the Vietnam Memorial during Veteran's Day ceremonies in Washington November 11, 2007. The 25th anniversary of the Vietnam Memorial will be celebrated later in the week. Reuters Pictures 20 months ago

Former Secretary of State and Vietnam veteran Colin Powell (R) and Senator Chuck Hagel (R-NE) stand at the Vietnam Memorial during Veteran's Day ceremonies in Washington November 11, 2007. The 25th anniversary of the Vietnam Memorial will be celebrated later in the week.