Last month, attackers using a vehicle and knives killed eight people and wounded dozens more on London Bridge.
A few weeks later in an incident nearby, a man drove into people leaving mosques after Ramadan services, killing one and injuring 10.
And in May, a man driving in New York’s Times Square plowed into a crowd during lunchtime, killing one person and injuring 22. While authorities said the incident was not terrorism, the Islamic State, inspired by the crash, used it to warn that more attacks on the nation’s largest city and popular tourist destinations would follow.
As terrorists overseas increasingly turn to vehicles as weapons, cities across the United States, concerned such attacks could happen here, are ramping up security in public spaces to protect areas with heavy pedestrian traffic.
“There’s unfortunately almost no end to the number of times these things happen by accident and, unfortunately, it is increasing the number of times these things are happening on purpose,” said Rob Reiter, a pedestrian safety expert and chief security consultant at Calpipe Security Bollards, one of the nation’s top bollard manufacturers.
Read more of the original article at The Washington Post.