Researchers have sent a quantum-secured message containing more than one bit of information per photon through the air above a city. The demonstration showed that it could one day be practical to use high-capacity, free-space quantum communication to create a highly secure link between ground-based networks and satellites. Researchers are planning to implement their scheme into a network that includes three kilometers of fiber that includes adaptive optics technology to compensate for the turbulence. The next step, they want this network to link this link to a global quantum encryption network.”]