Following afternoon massacres at two mosques in Christchurch that left at least 49 people dead, Prime Minister Jacinda Ardern described Friday as “one of New Zealand’s darkest days … We were not chosen for this act of violence because we condone racism, because we are an enclave for extremism. We were chosen for the very fact that we are none of these things. Because we represent diversity, kindness, compassion, a home for those who share our values, refuge for those who need it. And those values, I can assure you, will not, and cannot, be shaken by this attack.” Here’s the latest from CNN. The mass murder merged two of the era’s most nefarious trends: The rise of white supremacy and the weaponization of the internet.

+ “He is a 28-year-old Australian white nationalist who hates immigrants. He was angry about attacks in Europe that were perpetrated by Muslims. He wanted revenge, and he wanted to create fear. He also, quite clearly, wanted attention.” AP: Mosque shooter a white supremacist angry at immigrants.

+ Boston Globe: “This attack underscores a trend that ADL has been tracking: that modern white supremacy is an international threat that knows no borders, [and is] being exported and globalized like never before.”

+ Margaret Sullivan in WaPo: “The brutality that killed at least 49 people and wounded many others was fueled and fomented on social media — inviting support and, no doubt, inspiring future copy cats. One of the suspects had posted a 74-page manifesto railing against Muslims and immigrants, making it clear that he was following the example of those like Dylann Roof, who in 2015 murdered nine black churchgoers in Charleston, S.C. All of it ricocheted around the globe, just as planned.”

+ Kevin Roose in the NYT: A Mass Murder of, and for, the Internet.

+ Waleed Aly: “Of all the things that I could say tonight—that I am gutted, that I am scared, and that I am filled with utter hopelessness … the most dishonest thing would be to say that I am shocked. I’m simply not.”

+ And Adam Serwer’s piece, published before the New Zealand massacre: White Nationalism’s Deep American Roots. “When Americans abandon their commitment to pluralism, the world notices, and catastrophe follows.”