An information caption listed at the beginning of this episode indicates that the scene is taking place in the FBI field office in Burlington, Vermont. The FBI does not have a field office at that location. It is only a resident agency and jurisdiction for Burlington, Vermont rests with the official FBI field office in Albany, New York.
Secret service agent Ron Butterfield tells Leo that a suspect was apprehended while crossing from Ontario into Vermont. Vermont borders on the Canadian province of Quebec and not Ontario.
The analogy that Josh uses ("Islamic extremism is to Islamic as KKK is to Christianity") is grammatically incorrect. The first half relates a noun to an adjective whereas the second half relates a noun to a noun. The correct analogy would be "Islamic extremism is to *Islam* as KKK is to Christianity."
After being questioned Rakim Ali says that he was among the people caught in a hail of .44 caliber gunfire at Rosslyn. The weapons used were a 9mm Beretta and a .357 Desert Eagle, no .44 ammunition was used.
Rakim Ali tells Leo McGarry that he was among the people at "Rossalyn" during the shooting. It's "Rossalyn," (Rozz-lyn) and not "Ross-a-lyn."