Leo Murray is a spokesman for climate change campaign group Plane Stupid.

BBC: Is it a crime to take pictures?

Under a proposed rule change, any airline with a plane that holds more than 60 seats would have to report pet-related incidents.

CNN: STORY HIGHLIGHTS

Ms. ALICE KAYLOR (Airline Passenger, Logan International Airport): We've had to be creative about how we're going to change him if he has an accident on the plane.

NPR: Air-Travel Hassles on Display at Boston's Logan

Nine members of Plane Stupid, which campaigns against airport expansion and aviation-related climate change, entered the airport grounds at about 2:15 a.m.

CNN: Climate protesters blame Donald Trump for airport expansion

Using ATOP, if a pilot requests an altitude or route change, the system loads the new information, based on the data transmission from the plane, calculates any possible conflicts and suggests responses from the controller automatically.

WSJ: How New Air-Traffic Control Systems Operate Over Oceans