Rep. Dan Lipinski, D-Ill., has proposed legislation that would prevent airlines from charging passengers to use the bathroom during flights.

Lipinski said passengers are already faced with "uncomfortable conditions," and said that as airlines charge for more and more services, Congress should head off the idea that they might charge for bathroom use.

"One thing [passengers] should never have to worry about is access to a bathroom," Lipinski said Wednesday. "Unfortunately, commercial flights are not required to depart with a functioning bathroom, sometimes forcing passengers to endure a trip without this basic necessity."

"Moreover, as ancillary fees continue to grow, the specter of an in-flight bathroom fee continues to loom in the background since first being broached in 2010," he added.

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