In the near future I'll be travelling DUB-ORD-PDX and I was wondering if I can make liquid duty-free purchases in Dublin and bring them through security as carry-on luggage in Chicago O'Hare.
I will be changing terminal in O'Hare (T5 -> T1), so I have to re-clear security. In some EU airports the security people treat sealed, clear duty-free bags as "safe" for the purposes of the liquids ban. Do they do likewise in Chicago?
I won't have the opportunity to re-pack anything I buy and put it in my hold baggage since that will be checked through (I clear US customs in Dublin).