NPR News

The FBI has raised eyebrows in the tech world with a public document that asks for advice on how to harvest information from social networking sites.

Republican presidential hopeful Rick Santorum was back on the campaign trail Monday after improvements in the medical condition of his hospitalized young daughter Isabella or "Bella."

Bella's pneumonia, linked to a severe genetic condition, forced the former U.S. senator from Pennsylvania to cancel campaign events in Florida over the weekend.

But with the three-year old's turn for the better, Santorum headed to the Midwest to resume campaigning, forgetting Florida where Mitt Romney appeared headed for a big win Tuesday.

Mitt Romney starts the week having undergone a transformation.

For almost a year, he tried to portray himself as the grown-up in the Republican race for the presidential nomination. Now, over the course of two debates and countless Florida campaign stops, the buttoned-up businessman is showing that he can get tough.

This shift has upended the yin-yang dynamic that has been playing out for weeks between the passionate, fiery Newt Gingrich and the staid, steady Romney.

One of the guests in the congressional gallery at last week's State of the Union address was Roxana Delgado, an advocate for soldiers returning home with traumatic brain injuries. Her husband, an army sergeant who NPR profiled in June, 2010, had been dramatically affected by the concussion he received from a roadside blast in Iraq.

Many investors are expecting Facebook to file papers for an initial public offering sometime later this week. The company, which was founded in a Harvard dorm room less than a decade ago, is expected to be valued at nearly $100 billion by Wall Street.

And if these early reports are true this is shaping up to be the biggest Internet IPO ever.

Republican presidential hopeful Newt Gingrich is changing another of his positions in an effort to woo socially conservative voters.

Over the weekend he told churchgoers in Florida that as president he'd work to ban research using stem cells derived from human embryos.

Gingrich has long been a strong backer of federal funding for scientific research. In 2001 his support extended to research on stem cells derived from human embryos left over from in vitro fertilization efforts.

But apparently that's no longer the case.

Talk about lost in translation: Today's British press is buzzing with a story in the British tabloid The Daily Mail, which reports that two British travelers were denied entry into the U.S., after authorities uncovered two tweets.

In one Leigh Van Bryan quipped, "Free this week, for quick gossip/prep before I go and destroy America." And in another Van Bryan said that he was going to "dig up Marilyn Monroe."

If creatures from another planet are listening in on what our politicians and pundits have to say, they might think Democrats and Republicans are about as far apart politically as possible.

But there's new research that supports what many people already suspect: Most "real" Republicans and Democrats (that is, average Americans who have busy lives and aren't running for office or talking on TV), aren't that different when it comes to politics.

With Mitt Romney poised to win the Florida Republican primary, and maybe by a significant margin if the latest polls are correct, it's worth asking: how did the former Massachusetts governor manage to stop Newt Gingrich's surge coming out of South Carolina?