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Pope Benedict XVI, the former Cardinal Joseph Ratzinger, unexpectedly announced Monday that he will resign at the end of the month. With his resignation comes speculation about his tenure, potential successors and the future of the Catholic Church. Rocco Palmo, who runs the blog Whispers in the Loggia, explores the pope's legacy and what's ahead for the Catholic Church.

One theologian thinks that Pope Benedict XVI's resignation affirms the power of the papacy lies with the office, not the man.

Manure from pig farms doesn't just contain residues of antibiotics used in livestock. It also carries high concentrations of antibiotic-resistant bacteria, a new study of Chinese pig farms finds. And researchers say "it's a global problem."

As the gun-violence debate ratchets up to include mental health and violent pop culture, video games have become frequent targets of concern. But do violent games influence their players? Experts aren't clear, but violent games remain remarkably popular.

The scandal has shown just how long and winding the food chain really is, and how little oversight is exercised within Europe's open borders. In Britain, local butchers are among the beneficiaries of this crisis.

Some affected private companies are so frustrated by their inability to defend against attacks that they have opted to go on the offense themselves. Some cybersecurity firms are now marketing cyberweapons and attack strategies to companies that want to go after their adversaries.

Most people don't expect to work beyond retirement age, but for a growing number of older people, it's a reality. Almost a third of Americans between the ages of 65 and 70 are still working. For those 75 years and older, 7 percent are still on the job. An NPR series profiles some of these working seniors.

Since the recent discovery and ID of Richard III's bones under a Leicester parking lot, historians have been debating his legacy. Was Richard really the evil despot that Shakespeare made him out to be? Or was the real Richard a sensible domestic leader and the victim of a classic family struggle?

A teacher put herself between the gunman and a group of students. Then the deputy helped negotiate a peaceful end to the dangerous situation.

The president has nominated his chief of staff. Jack Lew is also a former budget director in both the Clinton and Obama administrations. He would replace Timothy Geithner, who plans to step down soon.