First of three parts

China's leader-in-waiting, Xi Jinping, is due to arrive in the U.S. shortly, providing the first glimpse of the next generation to lead the world's second-largest economy. This once-in-a-decade transition of power, which begins this fall, is rife with unpredictability, particularly as an unfolding political scandal grips China.

Last month, scientists around the world agreed to temporarily halt certain genetic experiments with bird flu viruses. More than three weeks of that 60-day moratorium have already passed. And the scientific community is in the midst of a fierce debate about what needs to happen next.

The suspension of the research came in response to fears that researchers had created dangerous new germs that could cause a devastating pandemic in people if they ever escaped the lab or fell into the wrong hands.

The Associated Press is reporting that the Greek Parliament has approved a crucial austerity and debt-relief bill to keep the country out of bankruptcy and remain a part of the eurozone.

From the AP:

In 2009, Tea Party rallies raged in cities across the country. The movement put its stamp on the 2010 midterm elections when the Republicans retook the House of Representatives.

So far, throughout the GOP primary contest, every major candidate at some point has tried to frame himself or herself as the Tea Party's standard-bearer, but what's most striking about the movement this election has been its notable absence.

It was a dangerous time in America: The economy was staggering, unemployment was rampant and a banking crisis threatened the entire monetary system.

The newly elected president pursued an ambitious legislative program aimed at easing some of the troubles. But he faced vitriolic opposition from both sides of the political spectrum.

For troops injured in Iraq and Afghanistan, the deepest physical pain often comes much later — weeks, or even months, after the incident. That was the case for Sam Brown, whose story appears in this month's GQ magazine.

Brown graduated from West Point in 2006. In the late summer of 2008, he was deployed to southern Afghanistan to lead a platoon. He did security for base construction and made sure the local villagers had enough food, water, and medicine.

It was hot, often mind-numbingly dull, and dusty.

A U.S. contractor working to provide Internet service to Cuba's small Jewish community was charged with spying and sentenced to 15 years in a Cuban prison. Alan Gross was reportedly working for the U.S. Agency for International Development.

What's the saying — the more things change, the more they stay the same? It seems that's how it goes in the ways we make music. MIT futurologist Tod Machover rethinks traditional instruments, coming up with new things like the hyperpiano; Pianist Michael Chertock gives it a go in an explosive excerpt below.

On the eve of the 54th Grammy Awards in Los Angeles, the conversation was all about Whitney Houston. The 48-year-old pop diva was discovered dead in her room at the Beverly Hilton Saturday afternoon. The cause of her death was under investigation.

Houston died alone in the same hotel that was the venue for a party she had often entered in triumph: the annual pre-Grammy Awards bash given by her mentor, recording impresario Clive Davis.

The main opposition leader in Myanmar, Aung San Suu Kyi, is campaigning for a seat in parliament in her constituency outside Rangoon. It's a scene that seemed impossible only a few months ago, before the military-backed government began a process of change. Host Rachel Martin speaks with NPR's Anthony Kuhn from Rangoon.