The head of the FBI’s field office in Washington, D.C., has a lot of explaining to do. A few days after the Capitol protest on January 6, 2021, a tough-talking FBI chief with a Boston accent promised the American people that the bureau would spare no resource in hunting down everyone and anyone involved in the four-hour disturbance that day. Steven M. D’Antuono, the newly appointed head of the Washington, D.C. FBI field office, gave the public a stern warning. “The FBI will leave no stone unturned. This is a 24/7, full bore, extensive operation,” D’Antuono explained during a January...