Foster said that the teens seized are not in uniform or even typically taken in combat.
"We're not talking about battlefield captures, we're talking about people who are living at home, and four or five brothers might be taken together. It might take them a year or more to figure out that one of them was younger than 18, to determine the identities of these kids," she said.
In January, the State Department will send a delegation to Geneva to present the report to the U.N.'s Committee on the Rights of the Child, and to answer any further questions the U.N. committee members may have.
The U.S. State Department report to the U.N. Committee on the Rights of the Child: http://www2.ohchr.org/english/bodies/crc/docs/CRC.C.OPAC.USA.Q.2.Add.1.doc