Security Spotlight, under Security Shorts the author (referencing a burka) states: "...you can't require someone to remove their religious garb."
While this may be true, does the bank not retain the right to refuse service? Especially, if they cannot visually compare the individual to his/her ID?
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"Remember no man is a failure who has friends." - Clarence (the Angel) Oddbody - It's a Wonderful Life