The secretary of Veterans Affairs says he's extremely upset that he didn't learn about the theft of the personal data of millions of veterans for two weeks.
Secretary Jim Nicholson says he's moving quickly to find out why.
He also told a House committee the information wasn't encrypted and that it included a variety of data, including Social Security numbers. Nicholson says health records were not part of the stolen data.
House Veterans Affairs Committee Chairman Steve Buyercalled the episode "a serious case of mismanagement."
Congress is trying to determine whether the veterans' agency had adequate security measures in place to guard against the unauthorized disclosure of veterans' Social Security numbers and birth dates.