[ti:US Can Destroy Drones Flying Near Military Bases] [by:www.51voa.com] [00:00.00]更多听力请访问51VOA.COM [00:00.20]This is What's Trending Today. [00:04.56]People who live near American military bases [00:09.08]and like to use drones, should be careful. [00:14.56]Their flying toy might become a target. [00:19.52]A drone is a flying machine operated by a device on the ground. [00:27.36]On Monday, the U.S. military announced new guidelines [00:32.60]about how it may deal with private drones. [00:37.68]Navy officer Jeff Davis is a spokesman for the United States Defense Department. [00:46.72]He said that civilian drones in the sky [00:51.12]could be at risk of capture or destruction. [00:55.76]Captain Davis said the U.S. government is concerned [00:59.57]about the safety of military sites, airplanes and people. [01:06.00]So, he said, it is closely watching drones. [01:12.04]The Federal Aviation Administration estimated the number of [01:16.76]private business drones alone could increase 10 times by 2021. [01:25.68]In late 2016, the agency estimated [01:31.08]there were 42,000 drones being used by businesses. [01:37.20]Google, Amazon and pizza delivery services [01:42.40]have proposed using drones to reach customers. [01:47.48]The government has announced a plan to deal with drones. [01:52.24]It took months to negotiate. [01:55.32]Many details are still secret about terms for capturing or destroying private drones. [02:05.00]It is not even clear how far drones must stay from military sites to avoid being targeted. [02:14.44]Action against drones does not have to involve firepower. [02:20.88]The news website CNN said the U.S. Department of Defense [02:26.15]has developed systems for bringing down drones using radio waves. [02:32.92]The report said such systems are already in use in Syria, Iraq and other places. [02:42.64]The drone story led to a mixed reaction on Twitter. [02:48.60]Several tweets suggested the military's announcement [02:53.36]about possible downings of drones was not news. [02:59.00]Seany Hide tweeted, "Of course they can." [03:04.12]Keith Wheeler agreed. "Sounds reasonable," he tweeted. [03:10.20]Others wondered why homeowners cannot take similar action. [03:16.76]Twitter user Mark Bradford said people should be able [03:20.81]to shoot down drones flying over their property. [03:25.24]On Tuesday, U.S. defense officials said an Iranian drone interfered [03:31.04]with an American fighter jet in the Persian Gulf. [03:35.20]The drone was being controlled by people on an Iranian boat. [03:41.76]The officials said airplanes have avoided hitting drones 12 other times this year. [03:48.84]And that's What's Trending Today. [03:53.60]I'm Dan Friedell. [03:55.52]更多听力请访问51VOA.COM