Forget e-tickets. Going paperless is the next wrinkle in air travel as American Airlines tests mobile boarding passes at OHare International Airport.

Travelers on American can flash a bar code on their cell phone screens to board flights and get through security checkpoints at OHare using new technology rolled out Thursday.

To use the feature, passengers must have an active e-mail address and an Internet-enabled mobile device to which their boarding pass and a 2-D bar code can be sent.

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