Facebook's ability to automatically block 1.2 million videos at upload "tells me there are powers to take a very direct approach to instances of speech that incites violence, or that incites hate", Ardern said at a news conference Monday.
Friday's slaughter in two New Zealand mosques, like mass shootings before it, had its seeds on one of the darkest corners of the Internet, a chat room where anonymous people appeared to talk openly about the attack before, during and after it happened.
Facebook says that it is using audio technology to detect more version of the video, allowing it to catch more footage even if there isn't an exact match to the full version streamed by Tarrant.
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"We are also removing any praise or support for the crime and the shooter or shooters as soon as we are aware", it added.
"We will continue working directly with New Zealand Police as their response and investigation continues", she said. "It is ever clearer that YouTube, in particular, has yet to grapple with the role it has played in facilitating radicalization."Facebook, Twitter and YouTube all said they were taking action to remove the videos".
She urged all social media companies to take responsibility for how their platforms were used in the lead-up to the mosque attack and in the aftermath.
This article has been adapted from its original source.
Live-streaming services have become a central component of social media companies' growth strategy in recent years, but they are also increasingly exploited by some users to livestream offensive and violent content.
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Following the shootings, Mosharraf Zaidi, an ex-government adviser, columnist and seasoned policy analyst who works for the policy think tank Tabadlab, tweeted: 'Unbelievable that both @facebook and @twitter have failed to remove (the) video of the terrorist attack in #Christchurch.
"If we can cut down the messenger, we can we can put strict regulations on these big social media sites once they reach a certain membership this can have a big impact on actually limiting you know all of this".
New Zealand's Department of Internal Affairs said people posting the video online risked breaking the law.
The rampage's broadcast "highlights the urgent need for media platforms such as Facebook and Twitter to use more artificial intelligence as well as security teams to spot these events before it's too late", Ives said.
A man arrested in connection with one of the terrorist attacks at New Zealand mosques on Friday livestreamed the attack on Facebook, according to the New Zealand Herald.
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The inability of social sites to stop the video circulating was having an effect in other ways in New Zealand. This act of far-right terrorism saw 50 people killed and as many injured. "Social media firms have made the decision not to invest in adopting it".