Originally Posted by
Flyer IAH
There is a security screening you will have to go through (even though bags will be checked all the way to your final destination). They will screen carry-ons, but I doubt they will confiscate your liquids from duty free. Keep liquids under 100ml and carry the ziploc bag the Duty Free Shop will hand you; you should be ok.
Last time I transited non-Schengen to Schengen at CDG (by walking from 2E over to the Schengen portion of 2F), the security screeners made the guy in front of us throw away about $120 in premium liquor he had just purchased from duty free.