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Jack asks for a translator in order to interrogate Omar; however, a "translator" deals specifically with the written word while "interpreters" deal with the spoken word. Not only is it improper English, but it would be irresponsible to ask for a translator, as they could have been presented with someone who is incapable of understanding accents and dialects, or worse: someone who is deaf but quite capable of working with text. Someone in Jack's position who deals with terrorists and interrogations on a daily basis would know the difference given that government bodies demand heavy certification to avoid incongruities.

According to on-screen time it takes 6-8 minutes between when Kate spots her sister and when she walks over to the hanger to investigate - this seems kinda odd.

That cut on Kate's ear healed in 3 hours. Is she genetically engineered?