Seoul tragedy: what causes a crowd crush

<p>At least 150 people have died in a crowd crush in South Korea. In today's deep dive we'll look at how a night out celebrating Halloween turned terribly wrong, what causes a crowd crush, and what to do if you ever find yourself in one.</p><p> </p><p>Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a></p><p>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.</p>