OK, so if you’re in first class, can you buy a bottle of champaign? The point is, that it would seem to be kind of useless to ban knives when you have glass on board. I know they won’t let you bring a container of anything containing liquid in your carry on, but could you pack an empty beer bottle in it? Again, everything they do is empty rhetoric designed to create sheep out of citizens.
You can bring liquids on board. You can bring liquids thru security as long as it’s a certain amount. They will make you pour out water or drink it before security but stuff for a baby can be allowed.
You can bring bottles of booze on board as long as it’s purchased inside the safe zone. You can’t drink it on board even though it happens. It all depends on if they have power hungry goons working security.
I’ve seen them search old Japanese ladies on a Japan bound flight and I have breezed right thru without a second look and I look like a terrorist.
Ramzi Yousef almost brought down an airliner with liquid explosive concealed in a “half empty contact lens solution”. That's no more than 5 ounces. His placement was luckily off because he actually hid the bomb inside a seat to detonate during the next flight. A suicide bomber placing such a bomb at the exterior of a jet would likely bring it down. Both the underwear bomber and shoe bomber had enough explosives but were luckily too stupid to detonate.
This is why we can't have more than 3 ounces of liquid and have the outline underneath our clothes scanned. However that is a STUPID approach. The question is are they really that dumb or are they truly conditioning people for random searches?
IMO, we need more chemical based detection systems rather than visual searches of everything. Bomb sniffing dogs/machines to check everything entering a plane would keep us more safe than what we have now. The deck should also be completely isolated the entire time. Pilots should have their own toilet and a small door for food. Stopping all the groping and doing these two things would eliminate 99.99% of threats.