The Philadelphia airport has introduced an initiative some might view as controversial: passengers who wish to refill their water bottles at refill stations in the terminal are being forced to watch advertisements. This program is the management’s response to the Transportation Security Administration’s (TSA) ban on carrying water bottles through security checkpoints. While the security organization doesn’t technically consider water a hazard, it does restrict passengers from carrying liquids over a certain size. There’s an argument that this TSA regulation has given the airport a valuable opportunity to generate revenue: after the initial confiscation of water bottles at the security checkpoint, most travelers find themselves needing to refill their bottles while waiting for flights. However, by forcing passengers to watch advertisements at the refill stations, the airport has figured out a way to monetize their customers’ thirst. The merits and drawbacks of this system are currently under debate among travelers and pundits alike.