The Standard & Poor’s 500-stock index has more than doubled since Barack Obama took office, an accomplishment achieved by only four other presidents.     Apple announced that iTunes U has reached a new milestone — over one billion content downloads. iTunes U features the world’s largest online catalog of free educational content from top schools and prominent libraries, museums, and organizations. Educators are using this content to create courses that include lectures, assignments, books, quizzes, and more for iOS users around the world. “It’s inspiring to see what educators and students of all types are doing with iTunes U,” said Eddy Cue, Apple’s senior vice president of Internet Software and Services. “With the incredible content offered on iTunes U, students can learn like never before ― there are now iTunes U courses with more than 250,000 students enrolled in them, which is a phenomenal shift in the way we teach and learn.” WASHINGTON—Weeks after accepting a workers’ compensation settlement for a personal injury he purportedly sustained on the job, Vice President Joe Biden is under investigation for allegedly filing a fraudulent claim, sources confirmed Friday. The government confirmed for the first time that it has killed Americans in strikes by unmanned aerial drones, killing four U.S. LOS ANGELES—Ahead of his impending free agency, Lakers center Dwight Howard told reporters Thursday that he is “very interested” in moving to Houston and completely ruining the Rockets. 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.” 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. The recent attacks seem to be aimed at sabotage rather than stealing information, United States officials say.     With an eye toward helping students navigate the digital world, Burlington High School outside Boston adopted the iPad one-to-one program, which provides every student with an iPad. In its first year, the program has already made a big difference — students say they’re more excited and organized than in previous years, and teachers say they see a deeper level of learning. “Having a say in your education is really powerful,” says one student. “With iPad, you feel like you’re more in charge.” Apple has announced that music fans have purchased and downloaded more than 25 billion songs from the iTunes Store. “We are grateful to our users whose passion for music over the past 10 years has made iTunes the number one music retailer in the world,” said Eddy Cue, Apple’s senior vice president of Internet Software and Services. The 25 billionth song, “Monkey Drums” (Goksel Vancin Remix) by Chase Buch, was purchased by Phillip Lüpke from Germany. As the downloader of the 25 billionth song, Phillip will receive a €10,000 iTunes gift card. Despite President Obama’s conciliatory gesture of a review of Justice Department investigations involving journalists, some reporters say that chill has already set in.     More than 88 percent of Fortune 500 companies have adopted written policies prohibiting bias on the basis of sexual orientation, but Exxon Mobil has refused.     If completed, a transaction would be one of the biggest health care deals of the year. And it could reap a sizable profit for Bausch & Lomb’s current owner, Warburg Pincus.     Apple has announced the launch of the iBookstore in Japan. The iBookstore has a wide selection of emerging and established authors, including Shyotaro Ikenami, Jiro Akagawa, Atsuko Asano, and Ryu Murakami. “We’re excited to launch the iBookstore in Japan with a wide selection of Japanese publishers and authors,” said Eddy Cue, Apple’s senior vice president of Internet Software and Services. “We think customers are going to love how engaging and interactive the books are to read, and how beautiful they look on iPad.” Mr. Cera discusses narrative dead ends, favorite episodes and accidental impersonations of Jesse Eisenberg.     The attackers set off a large explosion followed by numerous smaller blasts, sending United Nations and international agency workers into bomb shelters.     Microsoft says their new Xbox features a host of simple voice commands that will easily control and instruct gamers. Taking America off “perpetual war footing,” as the president proposes to do, will not be a simple task.     MIAMI—During Game 1 of the Eastern Conference Finals, players on the Miami Heat confirmed Wednesday that they were wholly unprepared for the aggressive brand of basketball played by the chainsaw-wielding members of the Indiana Pacers squad. The nation dredges up its last remaining reserves of grief, a study finds that anxiety can be resolved if you think about it real hard, and a woman who cracked three separate iPhone screens is expecting a baby boy this August. It's the week of May 24, 2013. 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.