Update At 7:47 P.M. ET. Chen Guangcheng Addresses A Crowd Outside New York University:

Addressing a crowd outside New York University, Chinese dissident Chen Guangcheng said he was grateful to the U.S. Embassy staff in Beijing for providing him a "safe haven." Through an interpreter, he said he was gratified that the Chinese government was handling his situation with "restraint and calm" and thankful for the opportunity to leave China to study at NYU.

Chen said he hoped Beijing would keep its promise to protect the family he had left behind.

NPR's Scott Horsley talks about what some are terming the "diplopaloozaa" this weekend, when President Obama hosts the G8 conference at Camp David on Saturday and the next day plays host to two dozen NATO heads of state in Chicago.

Blind Chinese activist Chen Guangcheng and his family are due to arrive in Newark this evening after a surprise early-morning flight from Beijing. Host Guy Raz gets the latest from NPR's Michele Kelemen, who's been following the story.

At 73, Tamae Watanabe is the oldest woman to summit Mount Everest — again. The last time she made the record, she was 63.

She reached the top with four other team members Saturday morning after an all-night climb, Asian Trekking says. The Japanese mountaineer was leading Asian Trekking's International Everest Expedition 2012.

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The Facebook IPO hasn't just sent a jolt of excitement through Silicon Valley, there are many average individual investors who are also thrilled. NPR's Sonari Glinton has more.

SONARI GLINTON, BYLINE: All right. It's a little after 9:30 on Friday. The bell just rang on the NASDAQ, and I'm gonna check in with some regular investors. I'm gonna start with Nelly Sai-Palm. She's a student at the University of Chicago's Booth School of Business, and I'm going to give her a call.

(SOUNDBITE OF TELEPHONE RINGING)

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This is WEEKEND EDITION from NPR News. I'm Scott Simon.

Chen Guangcheng, the blind, Chinese human rights lawyer, is on a plane headed for America right now, according to his friends and supporters. Chinese authorities gave Mr. Chen a passport today and drove him to an airport in Beijing. His departure caps a remarkable few weeks that included a daring escape from house arrest and high-stakes, diplomatic negotiations.

NPR's Frank Langfitt has been following the story from Shanghai. Frank, thanks for being with us.

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This is WEEKEND EDITION from NPR News. I'm Scott Simon. Stock in Facebook went on sale for the first time yesterday, the largest initial public offering of stock for an Internet company, and the sale instantly created scores of millionaires in Silicon Valley, about half a dozen or so billionaires. NPR's technology correspondent Steven Henn joins us. He's followed it all from Silicon Valley. Steve, thanks for being with us.

STEVE HENN, BYLINE: Sure, my pleasure.

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Music has a way of transporting us in time.

(SOUNDBITE OF SONG, "G.I. JIVE")

SIMON: So, indulge a little. Close your eyes, turn up the radio, you might just get transported to 1944.

(SOUNDBITE OF SONG, "G.I. JIVE")

LOUIS JORDAN: (Singing) P-F-C to C-P-L, S-G-T to the L-T. C-P the O-D, the M-P makes ya do K-P. It's the G. I. Jive Man.

SIMON: 1971.

(SOUNDBITE OF SONG, "MAGGIE MAY")

ROD STEWART: (Singing) Wake up Maggie, I think I've got something to say to you.

SIMON: Or 1993.

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This afternoon, the 137th running of the Preakness takes place at the Pimlico Race Course in Baltimore. Kentucky Derby Winner, the horse called, I'll Have Another, will try to capture the second jewel in the Triple Crown of Horse Racing, something only 10 horses have done since 1978. I'll Have Another, its trainer and owner all come from Southern California, and hopes are high that a big win will give a much-needed boost to horse racing in the California. NPR'S Carrie Kahn reports.

The flame for the London Olympics, which was ignited by the rays of the sun in the 2,800-year-old Temple of Hera in Greece, arrives in the UK Saturday. It was carried from Olympia in a lantern that flew aboard a gold-painted plane. Vicki Barker has more on the flame's relay race to London.