Massive granite slab falls kills 1, injures 1 in Yosemite

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YOSEMITE NATIONAL PARK, Calif. (AP) — A hunk of rock “the size of an apartment building” fell off the granite face of El Capitan in Yosemite National Park on Wednesday, killing one person and injuring another on a mountain at the height of climbing season, officials and witnesses said.

At least 30 climbers were on the wall at the time, but it was not clear if the victims were climbers or tourists, ranger Scott Gediman said.

“It was witnessed by a lot of people,” he said.

The injured person was taken to a hospital near the park. No names were immediately released.

El Capitan is one of the world’s largest granite monoliths towering 4,000 feet (1,219 meters) above Yosemite Valley.

Several people made emergency calls, reporting the rock fall from the Waterfall route on the east buttress of El Capitan.

Officials didn’t provide details on the size of the rock fall, but climbers posted pictures on social media from hundreds of feet up the wall showing billowing white dust moments after the crash.

“I saw a piece of rock, white granite the size of an apartment building, at least 100 feet by 100 feet, suddenly just come peeling off the wall with no warning,” said Canadian climber Peter Zabrok, 57, who was scaling El Capitan and was above the rock fall.

Zabrok said he has climbed El Capitan dozens of times and has “never seen anything like this.”

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Mountaineers from around the world travel to the park in the Sierra Nevada to scale El Capitan’s sheer face. Fall is one of the peak seasons because the days are long and the weather is warm.

Rock falls are common in Yosemite but seldom fatal.

Ken Yager, president and founder of the Yosemite Climbing Association, reviewed photos of the cliff face and debris field, estimating the relatively thin piece that broke off covered an area big enough to fit five houses.

“It cratered and sent stuff mushrooming out in all directions,” said Yager, fearing that its victim was someone he knew from the climbing community.

Zabrok said he and friends were in the middle of a six-day climb of the Waterfall route on the right side of El Capitan when they saw it.

“Boy, I don’t know how anybody could have survived that,” he told KFSN-TV, the ABC affiliate in Fresno.

Peering down from his perch 2,000 feet (609 meters) up on the rock, Zabrok said he saw a rescuer lowered by helicopter and “I believe he grabbed one survivor.”

He later saw rescuers moving someone on a litter.

“It was done at tremendous peril to the rescuers because there were three subsequent rockfalls that were all nearly as big and would have killed anybody at the base,” he said.

Climber Kevin Jorgeson said he and climbing partner Tommy Caldwell witnessed a massive rock fall in the same area while they prepared for a trek that made them the first people to free-climb the Dawn Wall on El Capitan in 2015.

First they heard a rumble and then they saw a white cloud of dust.

“Yosemite is just a really active, wild place. It’s always changing,” Jorgeson said. “It doesn’t make it any less tragic when someone gets in the way of that.”

In 2013, a rock dislodged and severed the rope of a Montana climber who was scaling El Capitan.

Mason Robison, 38, fell about 230 feet to his death. It was Robison’s gear digging into the side of the mountain that caused the rock to dislodge.

Yosemite remained open after Wednesday’s rock fall, and other activities throughout the park weren’t affected, rangers said.

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Twitter, With Accounts Linked to Russia, to Face Congress Over Role in Election

Since last month, researchers at the Alliance for Securing Democracy, a bipartisan initiative of the German Marshall Fund, a public policy research group in Washington, have been publicly tracking 600 Twitter accounts — human users and suspected bots alike — they have linked to Russian influence operations. Those were the accounts pushing the opposing messages on the N.F.L. and the national anthem.

Of 80 news stories promoted last week by those accounts, more than 25 percent “had a primary theme of anti-Americanism,” the researchers found. About 15 percent were critical of Hillary Clinton, falsely accusing her of funding left-wing antifa — short for anti-fascist — protesters, tying her to the lethal terrorist attack in Benghazi, Libya, in 2012 and discussing her daughter Chelsea’s use of Twitter. Eleven percent focused on wiretapping in the federal investigation into Paul Manafort, President Trump’s former campaign chairman, with most of them treated the news as a vindication for President Trump’s earlier wiretapping claims.

In the face of such public scrutiny, Twitter has said almost nothing about what it knows about Russia’s use of its platform. But Representative Adam Schiff of California, the top Democrat on the House Intelligence Committee, said he would like to know exactly what the company has done to find covert Russian activity and what it has discovered so far about fake accounts — including their reach and impact.

“I think right now the public is aware of only a subset of a subset of Russian activity online,” Mr. Schiff said in an interview. He said Facebook long denied that there had been Russian exploitation of its system, before reversing course on Sept. 6.

Mr. Schiff said the tech companies have asked for assistance from American intelligence agencies in trying to find and stop illicit interference from other countries, a request he said he supports.

The House Intelligence Committee announced on Wednesday that it would hold a public hearing on the matter of Russian influence next month, and a Senate aide said Facebook, Twitter and Google have been invited to testify at a Senate Intelligence Committee hearing on Nov. 1.

This month, The New York Times reported on evidence of Russian operators creating hundreds or thousands of fake Twitter accounts to flood the network with anti-Clinton messages during the campaign. The cybersecurity company FireEye identified what it called “warlists” of accounts linked to Russian intelligence that sometimes spewed messages like #WarAgainstDemocrats several times a minute.

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Both DCLeaks and Guccifer 2.0, which spread the leaked emails and documents and were identified as having been created by Russian intelligence, used accounts that Twitter has not suspended, though they have been dormant for months. In some cases, the Russian exploitation of Facebook and Twitter was linked: “Heart of Texas,” a Facebook page advocating the secession of Texas that was identified as one of 470 fake profiles and pages linked to Russia, also had a Twitter feed — now suspended — called @itstimetosecede.

Experts on Russia inside and outside the government say President Vladimir V. Putin had multiple goals in last year’s campaign of hacking, leaking and stealth propaganda. He hoped to damage, if not defeat, Mrs. Clinton, whom he blamed for encouraging pro-democracy protests in Russia and neighboring states.

But Mr. Putin also sought to darken the image of the United States, making it a less attractive model for other countries and reducing its international influence, said Mark R. Jacobson, a Georgetown professor and co-author of a new report on Russian influence operations.

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Last week, Facebook said it was turning over more than 3,000 Russia-linked ads to Congress. Many of those ads, like the opposing Twitter hashtags on the N.F.L. anthem issue, targeted divisions in American society by simultaneously sending conflicting messages to different users segmented by political and racial characteristics.

“What we see over and over again is that a lot of the messaging isn’t about politics, a specific politician, or political parties,” said Laura Rosenberger, director of the Alliance for Securing Democracy. “It’s about creating societal division, identifying divisive issues and fanning the flames.”

Her group’s web “dashboard” is called Hamilton 68. It is named for No. 68 of the Federalist Papers, believed to have been written by Alexander Hamilton, which warns of foreign meddling in American elections. The tool does not identify the activity of specific Twitter users but highlights the activity of the 600 accounts that researchers believe are either tied to the Russian government or repeat the themes of its propaganda.

For its part, Twitter has not said much about what it plans to say in the Congressional briefing.

“Twitter deeply respects the integrity of the election process, a cornerstone of all democracies, and will continue to strengthen our platform against bots and other forms of manipulation that violate our Terms of Service,” Twitter said in a statement.

Twitter has also said it was working to crack down on bots that distribute tweets en masse or that attempt to manipulate the platform’s trending topics.

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Colin Crowell, Twitter’s vice president of public policy, government and philanthropy, said in a blog post in June that the company should not be an arbiter of whether a tweet is truthful or not. Because Twitter is open and real-time, he said the platform is the best antidote to misinformation, when “journalists, experts and engaged citizens Tweet side-by-side correcting and challenging public discourse in seconds.”

Karen North, a social media professor at the University of Southern California’s Annenberg School for Communication and Journalism, said the company’s defense has some merit.

“Twitter functions more like a broadcast network,” she said. “People say things and everyone can hear it. When false information is stated, people can jump on false statements and challenge it.”

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