Your customized headlines for Sun, Mar 11, 2012

Roger Fidler, in jeans and a black turtleneck, is watching Steve Jobs, in jeans and a black turtleneck, introduce the iPad.

Fidler is sitting in his stark white office — the late Apple co-founder adored white's simplicity — and Jobs is strolling on stage in a 2010 video playing on Fidler's MacBook. "There's laptops and smartphones now," Jobs says. "But a question has arisen lately: Is there room for a third category of device in the world, something that's between a laptop and a smartphone?"

Ben Kessler, a student at the University of North Texas and an environmental activist, was more than a little surprised that an FBI agent questioned his philosophy professor and acquaintances about his whereabouts and his sign-waving activities aimed at influencing local gas drilling rules.

Last week, Greece officially defaulted on its debt. (Unofficially, it defaulted long ago.) This formal default on about $100 billion triggered payment of $3 billion in credit-default swaps. These are the non-insurance insurance products that pay off in the event of a default.

Does what you wear affect how well you work?

Quite possibly. We've all had the experience of feeling more motivated and focused when we're dressed up for work—whether that means donning a suit when our usual office dress is khakis and a golf shirt or, for those who work from home, simply getting out of pajamas. But new research shows that wearing certain items of clothing identified with certain qualities could help improve performance, too.

LA CHAUX-de-FONDS, Switzerland — Louis-Joseph Chevrolet, founder of the Chevrolet Motor Car Co., now the largest division of the world's largest automobile manufacturer, General Motors, was a local boy.

Watching with growing unease as the GOP presidential nomination fight promises to stretch into the spring, Republican leaders on Capitol Hill are making moves to protect their own reelection prospects in the fall.

WICHITA — At the end of a full day of more presidential primary contests, the tally showed a familiar pattern: No definitive winner, and no end in sight for the bruising GOP nomination battle.

Former senator Rick Santorum (Pa.) cruised to a victory in the Kansas caucuses with 51 percent of the vote, sweeping all but one of the state's 105 counties, the Associated Press reported, and bolstering his argument that he, and not former House speaker Gingrich, is the conservative alternative to Mitt Romney.

Daylight saving time is here. On Sunday, at 2 a.m., everyone in the United States will set their clocks ahead an hour. Except Hawaii. And Arizona. And the Midway Islands. And, yet again, reporters have to slog through the slew of studies on whether daylight saving is useful at all. So here we go:

Stephen Wolfram has spent decades collecting data on every e-mail he's sent, every phone call he's received, every keystroke he's made. But until now, he hadn't sat down to analyze the resulting mountain of data. His conclusion after running the numbers on, well, himself: