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Editor's note
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As the world reels from the New Zealand mosque massacre, it’s worth remembering the many past incidents of murder, assault and other violence that were also streamed live on Facebook. In the past, social media researcher Jennifer Grygiel has called for a time-delay on livestreams to protect children from seeing online horrors. Now, though, Grygiel writes that it’s time for even stronger action.
Social movements from the Bolsheviks to #MeToo often seem to come out of nowhere – until all of a sudden they topple once-untouchable tsars and media titans. Harvard’s Cass Sunstein, who recently finished a book on social change, explains why they take us by surprise.
And, even as marijuana legalization widens, your pet on pot is not a good thing. Pets, particularly dogs, are attracted to the smell of marijuana edibles such as brownies and candies. It’s important to keep pot away from pets, writes veterinary toxicologist John Buchweitz of Michigan State University, because it can make them sick. And derivatives such as CBD can be a problem, too.
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Jeff Inglis
Science + Technology Editor
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Top stories
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Facebook Live can be fun – or really scary.
I'm friday/Shutterstock.com
Jennifer Grygiel, Syracuse University
Children can't handle watching livestreamed massacres – and adults shouldn't have to.
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Tarana Burke created #MeToo in 2006 but it didn’t emerge as a mass social movement until 2017.
AP Photo/Damian Dovarganes
Cass Sunstein, Harvard University
From the French Revolution to #MeToo, social movements often burst into the mainstream with what seems like little warning. Cass Sunstein explains why.
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Dogs don’t need pot or CBD or other marijuana derivatives.
Harshad Rathod/Shutterstock.com
John P. Buchweitz, Michigan State University
As marijuana and its derivatives are sold legally in more states, pets are getting into pot, accidentally. And some owners are intentionally giving them CBD. A vet explains the dangers.
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Most read on site
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Brooke Schedneck, Rhodes College
Devotees from many parts of the world are visiting the ailing 92-year-old monk, who has retired to a Buddhist temple. He taught how the practice of mindfulness could be combined with daily actions.
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Art Jipson, University of Dayton; Paul J. Becker, University of Dayton
The recent massacre at a New Zealand mosque is a traceable, direct outgrowth of an American white nationalist movement that insists immigrants and people of color are a threat to 'white civilization.'
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Shinsuke Shimojo, California Institute of Technology; Daw-An Wu, California Institute of Technology; Joseph Kirschvink, California Institute of Technology
Your brain's sensory talents go way beyond those traditional five senses. A team of geoscientists and neurobiologists explored how the human brain monitors and responds to magnetic fields.
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Today’s chart
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Jean Twenge
San Diego State University
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