Although at the time, box cutters were an allowed item to be carried, as a screener, I would've hoped that it set off bells and whistles that 5 middle eastern men in a row all had box cutters in their pockets.
I mean, if they had swiss army knives, OK..most men carry those. But how many average men do you know that carry a box cutter in their pocket every day...let alone 5 men in a row.
Oh, but that's racial profiling! </s>