A drone is displayed Wednesday at Paris store Azur Modelisme. Law enforcement officials in the city are concerned about recent unexplained drone fly-bys of high-security sites, including the Eiffel Tower and the U.S. embassy. Eleanor Beardsley/NPR hide caption

itoggle caption Eleanor Beardsley/NPR

A staff member from DJI Technology Co. demonstrates a drone in Shenzhen, in southern China's Guangdong province. A new website lets people request that drones stay away from their property. Kin Cheung/AP hide caption

itoggle caption Kin Cheung/AP

Jimmy Underhill, drone technician for Agribotix, holds a drone at a farm in rural Weld County, Colorado. Luke Runyon/KUNC hide caption

itoggle caption Luke Runyon/KUNC

Drones are displayed at an event with the Small Unmanned Aerial Vehicles (UAV) Coalition, last month. The FAA's proposed new rules for their commercial use require certified pilots to fly them and limit their speed, altitude and area of operation. Jacquelyn Martin/AP hide caption

itoggle caption Jacquelyn Martin/AP

The AeriCam Anura pocket-sized drone has foldable propellers so you can take it on the go. The company plans to put the drone on Kickstarter by mid-October. aericam.com hide caption

itoggle caption aericam.com

In this image taken from video and released by SITE Intelligence Group, Anwar al-Awlaki speaks in a video message posted on radical websites in November, 2010. SITE Intelligence Group/AP hide caption

itoggle caption SITE Intelligence Group/AP

An unmanned U.S. Predator drone flies over Kandahar Air Field, southern Afghanistan, on Jan. 31, 2010. U.S. drone strikes killed at least 13 people in two separate strikes Wednesday and Thursday in Pakistan's tribal area. Kirsty Wigglesworth/AP hide caption

itoggle caption Kirsty Wigglesworth/AP

A 2011 photo shows an AeroVironment Puma drone being prepared for launch by University of Alaska researchers. The FAA says it approved BP's use of the drone to survey oil fields in Alaska. Keith Cunningham/AP hide caption

itoggle caption Keith Cunningham/AP

Jeff Blank, of Los Angeles-based Drone Dudes, prepares a quadcopter for takeoff. The drone has to chase a motorcycle down a hill. Aarti Shahani/NPR hide caption

itoggle caption Aarti Shahani/NPR

Merrill uses a drone to take aerial shots of Santa Cruz, Calif. Courtesy of David Merrill hide caption

itoggle caption Courtesy of David Merrill

North Dakota farmer Jim Reimers shows off one of the drones he uses to collect data on his family's 30,000-acre farm. Steve Henn/NPR hide caption

itoggle caption Steve Henn/NPR