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Many mass shooters show signs of distress before their attack. Smederevac via iStock/Getty Images Plus

Accused Buffalo mass shooter had threatened a shooting while in high school. Could more have been done to avert the tragedy?

When young people plan a mass shooting, especially at a school, they typically reveal their plans in advance. Two scholars weigh in on whether the warning signs are being heeded in the right way.
Three women displaced by the Russian invasion of Ukraine check their mobile phones at a refugee centre in Hungary. (AP Photo/Darko Vojinovic)

The Russian invasion shows how digital technologies have become involved in all aspects of war

Internet infrastructure disruption, targeted cyberattacks and the manipulation of disinformation during the Russian invasion of Ukraine all show that warfare now includes cyberwar strategies.
Telling elders scary stories about online scammers is not the best way to keep them safe. Olga Gavrilenko/EyeEm via Getty Images

Older Americans are given the wrong idea about online safety – here’s how to help them help themselves

Older Americans are often taught to be fearful of hackers and scammers in their midst while also being told to investigate potential threats. Better advice is to not engage.
Telecommunications companies around the world are expanding their next-generation, or 5G, networks. Guo Shining/VCG via Getty Images

What is 5G? An electrical engineer explains

5G is 10 times faster than 4G, promising better wireless internet access. It’s also expected to put the Internet of Things revolution in high gear.
The cute economy is not only a network of cute content that people participate in making, sharing and circulating but also a multibillion-dollar business. (Shutterstock)

Have an Instagram account for your pet? Love sharing funny animal videos? You’re part of the cute economy

If sharing cute animal content is your love language, you’re not alone — you are part of a bigger cultural phenomenon called the cute economy.
A vulnerability in Log4j, a humble but widespread piece of software, has put millions of computers at risk. SOPA Images/LightRocket via Getty Images

What is Log4j? A cybersecurity expert explains the latest internet vulnerability, how bad it is and what’s at stake

Log4Shell is the latest hacker exploit rocking the internet, and it’s arguably the worst yet. The vulnerability is in an obscure piece of software used on millions of computers.
Is it possible to have a jury whose members are unbiased? Raymond Boyd/Getty Images

Do unbiased jurors exist in an age of social media?

A video of Ahmaud Arbery was widely seen and shared by the citizens who could be called on to judge the accused killers. The issue was recently argued before the Supreme Court.

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