Other mistake: During the peace talks between the Arabs and Israelis CJ tells the press that the group had Maryland Crab Cake for lunch. Jews would not eat crab and some Muslims also would not.
Factual error: Near the end of episode 1 in series 6, General Alexander is briefing Leo, and the screen shows the Alpha strike headed east toward Syria from the USS Lincoln, which is depicted as being in the Mediterranean. In episode 2, he briefs the press, telling them that the strike was launched from the Lincoln in the Gulf.
Chosen answer: A really annoying innate lack of sense. My friends and family say the same thing all the time, and I'm endlessly trying to correct them. I think people just don't know any better and (ironically) couldn't care less that they're speaking incorrectly.