The company’s effort, approved by the Federal Aviation Administration, will be limited to parts of southwest Virginia. Original article at nytimes.com

The company had envisioned a fleet of solar-powered aircraft that would help bring more people online in remote parts of the world. Original article at nytimes.com

Pilots are filing reports of drones flying too high on a weekly, almost daily basis, despite new rules and fines. Original article at nytimes.com

The Federal Aviation Administration is considering new rules for drones, but some say imposing broad limitations could quash the technology, moving innovation overseas. Original article at nytimes.com

The list is not comprehensive, but it still provides a good idea of why the F.A.A. and others are increasingly concerned about the safe operation of drones. Original article at nytimes.com