Several local law enforcement agencies in Colorado, including Denver, are making plans to start dispatching drones instead of officers to respond to 911 calls.
The ground-based drones pose a great opportunity for new tactics, and can serve a great range of purposes, including the retrieval and transport of injured soldiers from the battlefield.
The Iran-backed Houthi rebels in Yemen claim they have shot down an American drone over the impoverished Arab country. This would be the second MQ-9 Reaper drone downed by the Houthis.
The strikes hit oil refineries, causing fires that burned into Friday morning as local officials warned that blackouts would continue throughout the day.
In Pakistan, a drone-launched missile hit a house in a former Pakistani Taliban stronghold near the Afghan border on Tuesday, killing at least four villagers.
Japan's Defense Minister Minoru Kihara on Friday called for stronger anti-drone capabilities following the posting of a drone video on Chinese social media.