; (2) diplomatic and other efforts, if any, the United States has undertaken to secure the return of such fugitives; (3) the average length of time these cases have been outstanding; (4) how many of these cases have been resolved to the satisfaction of the United States; (5) factors that have been barriers to the resolution of these cases; and (6) information on the number of United States citizens whose extradition has been sought by other countries during the past 5 years, a list of those countries seeking extradition, and the outcomes of those requests. (b) Form The report required by subsection (a) shall be submitted in unclassified form, but may include a classified annex if necessary. (c) Definition In this section, the term appropriate congressional committees means— (1) the Committee on Foreign Affairs and the Committee on the Judiciary of the House of Representatives; and (2) the Committee on Foreign Relations and the Committee on the Judiciary of the Senate.