您现在的位置: VOA >> VOA慢速英语 >> 科技报道 >> 正文

Technology Report - Can Facial Recognition Help Prevent School Shootings?

更新时间:2018/7/26 16:54:43 来源:本站原创 作者:佚名

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.

Some American schools plan to take camera technology a step further by adding facial recognition equipment to improve security. Such systems work by continuously searching faces for the identities of individuals whose images have already been entered.

Facial recognition technology

The Lockport City School District in western New York state has approved a facial recognition system at all its schools. District officials say the equipment will soon be in place to identify former students and employees, sex offenders and weapons. Schools in other states have also considered using the technology.

A security expert who worked with Lockport officials says such a system can prevent shootings like the one in Parkland, Florida. “This would have identified (Nikolas Cruz) as not being able to be in that building,” Tony Olivo told the Associated Press. Olivo said cameras placed throughout the school would have followed Cruz’s every move on school grounds.

The system chosen by Lockport administrators was created by Canadian-based SN Technologies. The company’s website says the facial recognition system can notify officials immediately when certain individuals are detected on school property. It is also designed to identify the most commonly used firearms.

Lockport’s director of technology is Robert LiPuma. He told the Associated Press that past violence has forced officials nationwide to decide what new security methods are needed. He said he hopes the district’s system will become a model for other schools.

A U.S.-based company recently announced it will start offering a free version of its facial recognition system to schools in the United States and Canada. The SAFR system by RealNetworks is also designed to keep people identified as possible threats from entering schools. Also, the system lets parents or others register their image so they can gain electronic entry to the school.

A question of privacy

Some critics of facial recognition technology say it should be kept out of schools. The New York Civil Liberties Union (NYCLU) has asked the state Education Department to block the technology from any New York school. Education officials have said they would review the group’s request.

In its letter to state officials, the NYCLU said the system will harm, not help students. “Rather than protecting them, the district is treating every child as a threat. Rather than human relationships, the district is relying on machines to do its job,” the letter said.

The Electronic Frontier Foundation, a digital rights group, has called on schools considering facial recognition to carefully examine how the systems will be used. It said officials must consider who will have access to collected information, how the system would be managed and whether students can decide not to take part.

Some critics have also questioned the effectiveness of facial recognition systems. A study released in February by the Massachusetts Institute of Technology (MIT) and Stanford University found that some facial recognition systems do not work as well on women or minorities.

Khari Demos is a father with two children attending Lockport High School. He said he thinks facial recognition can be an effective tool when used as part of a complete security package to keep students safe.

“It’ll actually identify who should and shouldn’t be in the school,” Demos said. “The system will never be 100 percent perfect, but it’s a step in the right direction,” he added.

I’m Bryan Lynn.

Words in This Story

detector – n. piece of equipment used to discover something, especially something that is hidden

principal – n. the person in charge of a school

rely – v. depend on

access – n. way of being able to use or get something

相关文章列表