Comment by regularfry
10 hours ago
Cynically, it's so they can sell you another bottle on the secure side. If they spend money to give themselves a working mechanism to distinguish water from not-water, they lose the ability to create retail demand.
10 hours ago
Cynically, it's so they can sell you another bottle on the secure side. If they spend money to give themselves a working mechanism to distinguish water from not-water, they lose the ability to create retail demand.
I understand the idea, but it's not completely true: I empty my bottle before the security check, and fill it after in a fountain.