VOA慢速英语：面部识别能帮助防止校园枪击案发生吗？
American education officials have sought new ways to make schools more secure following several deadly shootings in recent years.
One of them took place in February at Marjory Stoneman Douglas High School in Parkland, Florida. The attack, carried out by former student Nikolas Cruz, killed 17 people.
The killings set in motion a nationwide debate over school security and gun control. Many security proposals have been discussed, including the hiring of armed guards and putting metal detectors in schools.
The principal of Marjory Stoneman Douglas High School, Ty Thompson, recently tweeted about new security measures that will take effect during the new school year beginning next month. Among the changes will be adding four security officers, the addition of metal detectors and numerous new cameras.
Additional Updates:Clear backpacks are OUT for 18/19IDs and lanyards are IN for 18/19MSD will PILOT metal detectors in FallFire alarm tones are being alteredStay tuned.Have a great weekend Eagles!#MSDStrong
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