Historical clue formulations

• Fed. auditing agcy. — 2019-08-23
• Arm of the U.S. Cong. — 2012-06-24
• Fed. agcy. staffed with number crunchers — 2010-02-17
• Fed. auditing agcy. — 2009-03-23
• Fed. auditing agency — 2008-08-18
• Fed. auditor — 2007-08-05
• U.S. auditor — 2007-02-25
• Fed. overseer — 2005-07-10
• U.S. claim-settling dept. — 2001-03-30
• Fed. auditors — 2000-07-07
• Fed. budget group — 2000-05-14
• Auditing agcy. — 1998-09-25
• Fed. watchdog agcy. — 1995-03-19