given it's a layover, my guess is you'll stay inside the security area - and in short - the eating choices inside are very poor. Bring your own snack :-) Outside of security - which with 4 hrs you could go through immigratoin and customs there is a wide varity - and checking out the link in the previous post would help.

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"Dance as if no one's watching, Sing as if no one's listening and live live everyday as if it were your last"