im gonna be going to germany, and i need to find a way how to bring back absinthe and mad alchohol on the plane and you know how america is right now with the plane transportation
pack it in your checked luggage the only time you will have a problem is if for some strange reason customs wants to check through your bags. Even if the TSA does a search of your bag they are not supposed to take anything out, they are there for security and dont give a shit what kind of alcohol or whatever you bring along. Mailing it to yourself (while it would probably work) is a little more risky because all mail goes through customs and stuff is given a closer look going through there. In the airport you walk up to a customs agent/booth in your first port of call in the US and they ask if you have any fruits/vegetables/plants/other shit that you want to declare blah blah blah.
DONT GET GERMAN ABSINTHE they water there shit down. go to amsterdam, or some other european country. the alcohol tho would be worth taking into america.
If you are 21, just stick it in your luggage, I've never had a problem. I make my own alchool called genepi (the plant is in the Artemesia family like absinthe) and I bring some back every year no problem.
I stuffed numerous wine bottles and some cognac and ouzo into things like my sleeping bag and stuff coming back from europe last summer. I was under 21 so I couldn't claim it. It worked well for me, but then again I didnt get inspected upon returning to the United States (Houston).