The special congressional investigation of the Benghazi terrorist attacks in 2012 is officially over, after the House committee issued its final report and disbanded the group.

The final report was added to the House record on Dec. 7 at a whopping 322,000 words.

The panel, created in May 2014, spent more than $7.8 million and two and a half years investigating the terrorist attack on a U.S. compound in eastern Libya that killed four Americans, including Ambassador Christopher Stevens.

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The committee released a report in June backed by Republican committee members that criticized former Secretary of State Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE for her actions before and after the night of the attack.

Yet the report also added little to the understanding of what had happened during the September 11, 2012 attack.

The panel's most important action was likely in making public Clinton's use of a private email server as secretary of State.

The email controversy trailed Clinton during her entire presidential run and was unquestionably a factor in her defeat.

Clinton and other officials did not adequately heed concerns about the growing extremism in Benghazi and other parts of Libya, according to the report. It also criticized Clinton for blaming the violence on an anti-Islam video instead of consistently saying it was launched as a terrorist attack.