the security checkpoints at Logan International Airport.

Carla and Paige are "virtual assistants," that is, video projections designed to give you directions and knowledge about airport procedures with a human touch. These made by New York-based Tensator speak English and French (and can plenty of other languages ), but don't expect them to answer any of your questions. These digital greeters lack any Siri-like ability to help you discover a lovely airport bar or identify the gate your flight is leaving from.


Carla, which was installed last Friday at Logan, goes over her digital dialog about security screenings in both languages and then repeats the message when she is done. (If you are in a long line, you'll get to catch Carla's act over one time.) The display is designed to "quicken passenger flow and enhance the general screening technique for roughly 6,000 travelers a day," an airport statement says.

These greeters cost about $26,000 each, according to the statement. Dulles installed Paige in May for a trial period.