Mailman stole beer - 100% sure

No, it's not. I've flown with beer a whole bunch of times and never had any trouble. Just make sure your suitcase is under the weight limit and you're fine.

 

I fly with beer almost every time I travel, both in my bag and in 12 bottle styro shippers. Never had an issue, and I always tell them what it is when they ask. As long as everything is bagged and bubble wrapped, they always just ask me to sign a waiver releasing them from responsibility and we're good to go.

 

I check 12-bottle styro shippers all the time also. The only time I've gotten the slightest questioning was coming home from California wine country, where they occasionally ask if it was packed by a winery. (The answer they are looking for is "yes", as apparently this gives them confidence that it's packed properly and won't break.)

 

I travel with a hand scale to avoid the types of situations MordorMongo was talking about