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Photo: Quinn Rooney/Getty Images

Australia's Prime Minister Scott Morrison on Tuesday called for the G20 to discuss taking measures against social networks at its upcoming meeting, following the live-streaming of the fatal New Zealand mosque attacks.

What he's saying: "It is unacceptable to treat the internet as an ungoverned space," Morrison writes in a letter to Japan's Prime Minister Shinzo Abe, chairman of June's G20 meeting in Osaka. "It is imperative that the global community works together to ensure that technology firms meet their moral obligation to protect the communities which they serve and from which they profit."

The big picture: Friday's attacks on two Christchurch mosques that killed 50 people were live-streamed on Facebook for 17 minutes. Copies of the video were shared quickly and widely on other sites, including YouTube and Twitter.

Between the Lines: Facebook is being widely criticized for failing to block the footage. NZ Prime Minister Jacinda Ardern said Sunday she wants answers from Facebook on how the video was able to be live-streamed. Some New Zealand business have stopped advertising on the social networking site in protest and asked businesses around the world to join the boycott, Newshub reports.

The other side: Facebook said Monday video footage of the New Zealand attacks was viewed fewer than 200 times during the live stream and 4,000 times in total before it was removed. "The first user report on the original video came in 29 minutes after the video started, and 12 minutes after the live broadcast ended," it said. It said earlier moderators removed 1.5 million videos of the attack globally in the first 24 hours, of which 1.2 million were blocked while being uploaded.

A tweet previously embedded here has been deleted or was tweeted from an account that has been suspended or deleted.

Go deeper

28 mins ago - Health

CDC panel recommends Pfizer boosters for high-risk individuals, people 65 and up

Photo: Marco Bello/Anadolu Agency via Getty Images

A key panel at the Centers for Disease Control and Prevention on Thursday recommended the Pfizer-BioNTech coronavirus booster shots for people 65 years old and older, as well as those at high risk of severe COVID-19.

Why it matters: The approval is the near-final step in making the booster shots available to tens of millions of Americans, and comes a day after the FDA approved Pfizer boosters for the two groups. CDC director Rochelle Walensky is expected to accept the recommendation.

DHS temporarily suspends use of horse patrol in Del Rio

U.S. Border Patrol agents watch as Haitian immigrant families cross the Rio Grande from Mexico into Del Rio, Texas on Sept. 23, 2021. Photo: John Moore/Getty Images

The Department of Homeland Security on Thursday temporarily suspended the use of horse patrol in Del Rio, Texas a DHS spokesperson confirmed.

Why it matters: The suspension comes after images showing border patrol agents whipping at and charging their horses at migrants surfaced earlier in the week, prompting widespread criticism of the Biden administration's handling of the crisis at the border.

Southwest drought is worst on record, NOAA finds

In a stark new report, a team of NOAA and independent researchers found the 2020-2021 drought across the Southwest is the worst in the instrumental record, which dates to 1895.

Why it matters: They also concluded that global warming is making it far more severe, primarily by increasing average temperatures, which boosts evaporation.