The hosts of NPR's All Things Considered help you make sense of a major news story and what it means for you, in 15 minutes. New episodes six days a week, Sunday through Friday.Support NPR and get your news sponsor-free with Consider This+. Learn more at plus.npr.org/considerthis

The hosts of NPR's All Things Considered help you make sense of a major news story and what it means for you, in 15 minutes. New episodes six days a week, Sunday through Friday.<br><br><em>Support NPR and get your news sponsor-free with Consider This+. Learn more at plus.npr.org/considerthis</em>

Consider This from NPR

Who is to blame for the deaths of nine people at the Astroworld Festival last Friday? Houston police have opened a criminal investigation and concertgoers have already filed more than 20 lawsuits against the event organizers and rapper Travis Scott, who continued to perform for more than half an hour after officials declared a mass casualty event. 
Crowd safety expert Keith Still explains the science behind how a concert crowd can transform into an uncontrollable mass that threatens human life. 
Houston Chronicle music critic Joey Guerra, who attended the festival, grapples with how music fans are processing the tragedy. 
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What Went Wrong At Astroworld? The Deadly Dynamics Of Crowd Surge