YouTube tells me it's deleted thousands of videos on the New Zealand mass shooting in the last 12 hours.

Even more are still online as the tech giant is struggling to keep up with re-uploads: https://t.co/WFpnsDwCWf

— alfred ? (@alfredwkng) March 15, 2019

It's been eight hours and you can literally still watch this video on YouTube.

— Drew Harwell (@drewharwell) March 15, 2019

In other words, 300,000 out of an unknown number of total uploaded videos were actually removed from the site. https://t.co/RSHwswMn8b

— Zack Whittaker (@zackwhittaker) March 17, 2019

In the first 24 hours we removed 1.5 million videos of the attack globally, of which over 1.2 million were blocked at upload...

— Facebook Newsroom (@fbnewsroom) March 17, 2019

This is a pretty striking illustration of the scale of the challenge. https://t.co/eJjL9M4DNB

— Benedict Evans (@benedictevans) March 17, 2019

This is good transparency. I hope we see something like it from YT.

From a procedure standpoint, I'm curious if/when @facebook communicated w/their counterterrorism partners and/or got the content into GIFCT's database. GIFCT was created in part to stop spread of these videos. https://t.co/BAvW8v7Kwx

— Renee DiResta (@noUpside) March 17, 2019

Extremism researchers and journalists (including me) warned the company in emails, on the phone, and to employees' faces after the last terror attack that the next one would show signs of YouTube radicalization again, but the outcome would be worse. I was literally scoffed at. https://t.co/z0OPqfJJw6

— Ben Collins (@oneunderscore__) March 15, 2019

Facebook doesn’t often share stats like this and they’ve been heavily criticized in light of this event. The key tho is to see what the engagement was on the 300k videos that got through as well as the original Facebook live stream. https://t.co/6XMquc71EL

— Ryan Mac (@RMac18) March 17, 2019

How do you build a platform that only nice people use? I wish there were an easy answer, but I'm unclear why we keep blaming tech for the fact that some people are bad. https://t.co/be5PCfFEBc

— Mike Masnick (@mmasnick) March 15, 2019

The shooting in New Zealand is horrific, and the bizarre, broken internet dynamics that the shooter intended to take advantage are an inextricable part of it https://t.co/1Ip43K80F0

— nilay patel (@reckless) March 15, 2019

"We removed 300,000 videos" means little if Facebook failed to remove 500,000 vidoes still on the site.

— Zack Whittaker (@zackwhittaker) March 17, 2019

I've been reading James C. Scott's Against The Grain and a lot of it is about how early cities were like disease magnets and the rise of cities required them to develop more controls against that. Reminds me a bit of "virality" on social networks. https://t.co/y7S6eyOXDq

— Melissa McEwen (@melissamcewen) March 17, 2019

Update from Mia Garlick, Facebook New Zealand: "We continue to work around the clock to remove violating content using a combination of technology and people...

— Facebook Newsroom (@fbnewsroom) March 17, 2019

this stat is being shared to suggest that FB is ‘on it.’ but talking about takedowns/speed of takedowns is sidedtepping the root of the problem. what is it about fb that incentivized a vid like that to be uploaded 1.5 million times in one day? the scale alone shld give them pause https://t.co/UbPBmeUtaM

— Charlie Warzel (@cwarzel) March 17, 2019

Wow. Facebook claims it blocked 80% of the New Zealand shooter videos that were uploaded with its AI technology. The problem is the 20% that made it past the AI equaled 300,000 videos (!)

Facebook’s scale is its own worst enemy these days https://t.co/Op63gF7OKw

— Kurt Wagner (@KurtWagner8) March 17, 2019

without knowing proportions and delays and # views this doesn't tell us much, but wow, 1.5 million uploads?! Absolutely staggering numbers https://t.co/fksuZMPNt7

— Alex Krasodomski (@akrasodomski) March 17, 2019

These numbers are vanity metrics unless they’re shown alongside engagement and video views from the live stream. This is bordering on misinformation which gives us no way of understanding the true scale of distribution and amplification.https://t.co/6dgRc7KiVj

— Mark Rickerby (@maetl) March 17, 2019

So a 20% false negative rate on upload. An average time-to-deleted for the ones that got through would be interesting.

Of course, these are the uploads *they know about*. https://t.co/DMh1LkwyCI

— Antonio García Martínez (@antoniogm) March 17, 2019

This is the right question. “We put out a lot of the fires after a million people got burned” may be an effective measure of response after harm, but we should still ask why they’ve been dousing everything in gasoline for years. https://t.co/q3C5GaQiW1

— Anil Dash ? (@anildash) March 17, 2019

Facebook says:
-We let at least 300,000 copies of the video onto our platform, a 20% failure rate.
-Took us 24 hours to take them down.
-No, we won't tell you how many people saw it. It's many millions.
-These are just the copies we know about/will admit.https://t.co/P1roxWbJCj

— Nicholas Grossman (@NGrossman81) March 17, 2019

Facebook says that it removed 1.5 million videos of the New Zealand mass shooting https://t.co/SpcVQOu0Gw pic.twitter.com/4WFUzQc8KP

— The Verge (@verge) March 17, 2019

Facebook says that it removed 1.5 million videos of the New Zealand mass shooting https://t.co/lEWPu2JnZO pic.twitter.com/277PxQjVMV

— R. Saddler ????? (@Politics_PR) March 17, 2019

Valve takes down user tributes memorializing the New Zealand shooting suspect https://t.co/WTo43dHQi6 pic.twitter.com/bJgA8NGYeq

— The Verge (@verge) March 16, 2019

Facebook says it removed 1.5 million videos of the #NewZealand #MosqueAttack #ATUKBusiness #ATSocialMedia #MancIsMarvellous #UKSOPRO #BlackpoolRocks #SocialMedia #Londonislovinit #SheffieldisSuper #UKSmallBiz #YORKSHIREIShttps://t.co/tLIiso8wjx

— Andrew Ivan (@AndrewIvan9) March 17, 2019

Facebook said it removed 1.5 million videos of the New Zealand mosque attack in the first 24 hours after it happened.

1.2 million were blocked at upload, but it’s unclear how many people watched the remaining 300,000 videos before they were taken down. https://t.co/walShaiOAW

— J.R. Reed (@JRReed) March 18, 2019

Facebook says it removed 1.5 million videos of the New Zealand mosque attack https://t.co/ANYl5h7iRa pic.twitter.com/RAxYlvKKAk

— Rich Tehrani (@rtehrani) March 17, 2019