In Totems thread here, you stated that they (the Arab Skinnies) were out after curfew and trespassing. where did you get that info? i showed my friend the clip and he wanted to read more about the encounter.
The film is shot at night. Sunset = curfew. Breaking curfew is illegal and indicative of misdeeds and bad intentions. All of which was confirmed by the now-dead towelheads carrying RPGs-- unless they were going sport hunting with them...