Expert: Catching videos on social media harder than you think
Levi West, director of terrorism studies at Charles Sturt University, explains the difficulties in flagging and halting threatening and disturbing social media posts.
01:09 - Source: CNN
New Zealand Mosque Shootings 15 videos
New Zealand mosque analysis
Expert: Catching videos on social media harder than you think
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Police stand outside a mosque in Linwood, Christchurch, New Zealand, Friday, March 15, 2019. Multiple people were killed during shootings at two mosques full of people attending Friday prayers. (AP Photo/Mark Baker)
Scenes from one of New Zealand's 'darkest days'
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CHRISTCHURCH, NEW ZEALAND - MARCH 18: Youngsters perform a Haka during a students vigil near Al Noor mosque on March 18, 2019 in Christchurch, New Zealand. 50 people were killed, and dozens are still injured in hospital after a gunman opened fire on two Christchurch mosques on Friday, 15 March. The accused attacker, 28-year-old Australian, Brenton Tarrant, has been charged with murder and remanded in custody until April 5. The attack is the worst mass shooting in New Zealand's history. (Photo by Carl Court/Getty Images)
New Zealanders pay tribute to Christchurch victims
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Man describes confronting New Zealand shooting suspect
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Tributes laid at the police line close to the Al Noor mosque in Christchurch where 41 people died.
Terror attack death toll rises to 50
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New Zealand attack survivor shares message from hospital
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A police officer secures the area in front of the Masjid al Noor mosque after a shooting incident in Christchurch on March 15, 2019. - Attacks on two Christchurch mosques left at least 49 dead on March 15, with one gunman -- identified as an Australian extremist -- apparently livestreaming the assault that triggered the lockdown of the New Zealand city. (Photo by Tessa BURROWS / AFP)        (Photo credit should read TESSA BURROWS/AFP/Getty Images)
Online platforms scramble to remove terror attack videos
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In the wake of the deadly attack against two mosques in New Zealand, police officers sit in their vehicle out side the Al Aqsa Islamic Society mosque in Philadelphia, ahead of prayers Friday, March 15, 2019. (AP Photo/Matt Rourke)
Suspect's manifesto part of a disturbing pattern
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New Zealand mom worries: Waiting to see if son is all right
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New Zealand Prime Minister: This was a terrorist attack
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Survivor: I prayed the shooter would run out of bullets
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Prime minister: One of New Zealand's darkest days
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Witness: Shooting lasted for 10-15 minutes
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