Apple announced that it will hold its annual Worldwide Developers Conference (WWDC) June 10 through June 14 at San Francisco’s Moscone West. At the five-day conference, developers from around the world will learn about the future of iOS and OS X. WWDC will also feature more than 100 technical sessions presented by over 1,000 Apple engineers and hands-on labs to help developers integrate new technologies. And the popular Apple Design Awards will showcase the most outstanding apps available through the App Store and Mac App Store. Tickets for this year’s WWDC go on sale Thursday, April 25, at 10 a.m. PDT. Kim Jong-un sent a top official to China as ties between the two countries remained strained over Pyongyang’s nuclear program.     SUNNYVALE, CA—Finally overcoming competition from the likes of Google, Microsoft, and AOL, internet corporation Yahoo firmly re-secured its place as an industry leader after Sunday’s purchase of millions of blogs written by 13-year-old girls. Across the United States, teachers are using iPad and other tablets to reinvent the presentation and management of educational material. According to a report in Wired magazine, “tablets’ simplicity, ease of use and the massive range of academically minded applications available are drawing teachers and educational technologists to the platform in droves.” iPad is leading this charge, as “the most popular tablet among educators,” and “Apple’s iTunes U is one tool making iPad-based course integration easier by helping teachers create and curate a wholly digital curriculum.” The Federal Reserve chairman, Ben S. Bernanke, told Congress that a premature tightening of monetary policy “would carry a substantial risk of slowing or ending the economic recovery.”     Steven Aquino, who works with children with special needs and is himself visually impaired, describes in The Magazine how accessibility technologies like VoiceOver and Guided Access built into iOS “let those with disabilities use their devices with as much wonder and enjoyment as the fully abled.” Calling iOS “nothing short of a godsend,” Aquino notes that with iPad, a cognitively delayed student is able to “tap and swipe like a pro” and even master multitasking gestures without any demoing or prompting. He concludes: “Every time I pick up my iPhone or iPad, I feel extremely fortunate that I’m living in this time.” WASHINGTON—Standing before members of the White House Press Corps Wednesday afternoon as aides lowered a bunch of grapes into his mouth, President Obama encouraged everyone gathered in the West Wing briefing room to abandon their inhibitions and rev... Iran is pressing ahead with the construction of a research reactor that could offer it a second way of producing material for a nuclear bomb, a U.N. report showed on Wednesday.     In this video report from CNN, documentary film director Malik Bendjelloul talks about how he used a $1.99 iPhone app to finish shooting his Oscar-nominated film, “Searching for Sugar Man.” The film tracks the rise to fame of the Detroit musician Rodriguez, who never made it big in the United States but became a legend in South Africa. Bendjelloul started shooting the movie on film, but with just a few shots remaining, he found his budget depleted. That’s when he turned to an iPhone app called 8mm by Nexvio, which gave his video a retro feel. “It looks like real film,” says Bendjelloul. “You can’t tell the difference.” “Searching for Sugar Man” has garnered praise at the Tribeca film festival, SXSW Film, and the Los Angeles Film Festival. Blog post and video from Microsoft Digital Crimes Unit about company efforts to stop the Rustock spambot. DULUTH, MN—Generously bestowing the kind of wisdom that only comes with age, worldly and venerable 27-year-old Matthew Owen took the time last night to offer his enlightened counsel to 24-year-old family friend Dennis Paige, sources confirmed Tuesda... A trial is to begin on July 9 for Francesco Schettino, captain of the doomed Costa Concordia, which ran aground off the coast of Tuscany in January 2012, killing 32.     Apple announced financial results for its fiscal 2013 second quarter ended March 30, 2013, posting revenue of $43.6 billion and quarterly net profit of $9.5 billion, or $10.09 per diluted share. During the quarter, Apple sold 37.4 million iPhones, compared to 35.1 million in the year-ago quarter. And it sold 19.5 million iPads during the quarter, compared to 11.8 million in 2012. “We are pleased to report record March quarter revenue thanks to continued strong performance of iPhone and iPad,” said Tim Cook, Apple’s CEO. “Our teams are hard at work on some amazing new hardware, software, and services, and we are very excited about the products in our pipeline.” Apple has announced that customers have now downloaded over 50 billion apps from the App Store. The 50 billionth app — Say the Same Thing by Space Inch, LLC — was downloaded by Brandon Ashmore from Mentor, Ohio, who received a $10,000 App Store Gift Card to commemorate the milestone. “The App Store completely transformed how people use their mobile devices and created a thriving app ecosystem that has paid out over nine billion dollars to developers,” said Eddy Cue, Apple’s senior vice president of Internet Software and Services. “We’re absolutely floored to cross this milestone in less than five years.” The Cleveland Cavaliers, who won the lottery in 2003 and 2011, will have the first pick in the June 27 draft. The Orlando Magic will have the No. 2 pick.     Ibragim Todashev was fatally shot after the authorities said he tried to attack two officers who were interviewing him about links to the deceased Boston bombing suspect and about whether he had played a role in a triple murder in 2011.     LAS VEGAS—Doctors at Valley Hospital Medical Center are reporting that pop sensation Justin Bieber is in critical but stable condition today after being admitted to the facility’s intensive care unit Sunday night with severe booing-related tra... Six Egyptian policemen and a border guard kidnapped by suspected militants in the volatile Sinai Peninsula last week were freed by their captors Wednesday after successful mediation, the country's military spokesman said.     A water tower atop a neglected building in Chelsea hosted a discreet nightclub for adventurous guests who had been given a mysterious timepiece.     The cover of the January 28 issue of The New Yorker features work by Jorge Colombo, an artist who creates his pieces exclusively on the iPad. He started out in 2009 working on the iPhone, but now enjoys the larger format of the iPad. “I became more proficient on the tablet and started using more lines and more detail,” he says. His illustration for The New Yorker, titled “Newsstand,” is the first piece Colombo created on the iPad. With low voter turnout, City Councilman Eric Garcetti beat City Controller Wendy Greuel, and takes over a city facing myriad problems.