[ti:US Report on School Shootings Suggests Most Are ‘Preventable’] [by:www.myyhpf.tw] [00:00.00]更多聽力請訪問51VOA.COM [00:00.04]A new study suggests that many of the deadly school shootings in the United States [00:06.52]over the past 10 years could have been prevented. [00:12.56]Most students who carried out such an attack had shown threatening or suspicious behavior, [00:20.00]but were not reported to law enforcement, the study found. [00:26.12]The U.S. Secret Service reported the findings last week. [00:32.20]The study was based on an in-depth examination of 41 incidents of "targeted school violence." [00:41.60]All of the attacks happened over a 10-year period from 2008 to 2017. [00:51.00]The Secret Service's National Threat Assessment Center collected information [00:57.44]from police reports, as well as public and non-public investigation records. [01:05.72]The findings will be used to train school officials and law enforcement [01:11.21]to better identify students who may be plotting an attack. [01:17.24]Lina Alathari is head of the National Threat Assessment Center. [01:24.08]She told The Associated Press that most school shootings "are not sudden, [01:29.80]impulsive acts where a student suddenly gets disgruntled." [01:34.82]She added that "the majority of these incidents are preventable." [01:41.64]In 80 percent of the shootings, the attacker's behavior was so worrisome to others [01:48.21]that it made them express concern about "the safety of the attacker or those around them." [01:56.12]The study found that the shootings took place quickly and often ended within 60 seconds or less. [02:05.08]Law enforcement rarely arrived while the attack was happening. [02:10.40]Attacks generally started during school hours and happened in a single area, [02:16.40]such as a dining hall, restroom or classroom. [02:22.04]Most of the attackers were male, but seven were female. [02:27.56]Researchers reported that 63 percent of the attackers were white. [02:32.72]Fifteen percent were black, 5 percent Hispanic and 2 percent American Indian or Alaska Native. [02:43.52]The attackers most often used guns, but knives were sometimes used. [02:50.32]Investigators said most of the weapons came from the homes of the attacker. [02:57.44]The report identified warning signs that school officials, [03:01.84]families and other students could use to help them recognize a possible attacker. [03:10.36]These include signs of increased anger, a clear interest in weapons and violence, [03:17.52]depression or isolation, self-harm or sudden behavioral changes. [03:25.64]The study found most U.S. schools have security cameras [03:30.21]as well as planned lockdown measures for shooting situations. [03:36.48]However, only 17 percent of the schools had a system in place [03:41.90]where students or families can directly contact officials about a student in crisis. [03:50.28]The study was launched following the 2018 shootings [03:54.44]at Marjory Stoneman Douglas High School in Parkland, Florida. [04:00.56]The fathers of three students killed in the attack [04:04.01]attended a media event timed to the release of the study. [04:10.08]Tony Montalto, whose daughter Gina Rose died in the Florida shooting, [04:15.84]said the research was invaluable and could have helped her school prevent the attack. [04:23.64]"My lovely daughter might still be here today," he said. [04:28.52]"Our entire community would be whole instead of forever shaken." [04:34.76]Montalto urged other schools to pay close attention to the findings. [04:41.04]"Please, learn from our experience. It happened to us, [04:45.61]and it could happen to your community, too," he said. [04:51.36]I'm Bryan Lynn. 更多聽力請訪問51VOA.COM 重庆幸运农场开奖结果查