Background: Despite telling myself that I will never fly on US Airways again, I still get dragged back every couple years or so. This is my first time traveling them internationally, as I got in on the JK mistake fare to MAD/BCN this summer. Despite the awful seats in coach -- truly, truly awful (and I normally don't mind coach) -- the duty free selection looked appealing. Johnnie Walker Blue is only $142 compared to well over $200 in Seattle, and I finally have the means to justify it at the lower price. Do I have to pass through security again after clearing customs at PHL? If so, I guess that means I have to put the bottle in my checked luggage. Is it worth the risk? Does US deliver duty free goods at arrival post-security, avoiding this issue? I've honestly never seen anything worth buying before, so any advice is welcome. I believe I'm connecting in the same terminal if that's helpful.