A model of EHang 184 and the next generation of Dubai Drone Taxi is seen during the seconde day of the World Government Summit in Dubai, United Arab Emirates, Monday, Feb. 13, 2017. Dubai hopes to have a passenger-carrying drone buzzing through the skyline of this futuristic city-state in July. Mattar al-Tayer, the head of Dubai's Roads & Transportation Agency, made the surprise announcement Monday at the World Government Summit. (AP Photo/Jon Gambrell)
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