But first,we talk to some Americans who have retired from their professional lives but still work hard to help others.

VOA: special.2010.07.16

The Great Recession gave some mothers no choice but to work, as job cuts hit hard at men.

VOA: special.2010.04.23

But the work is hard. And getting all the oil from the seeds can be difficult.

VOA: special.2009.09.29

But he is hard at work. He and his team currently are trying to make algae that can change carbon dioxide back into fossil fuel.

VOA: special.2010.07.20

But it stopped me from doing the work that was too hard for me.

VOA: special.2010.08.01

It's hard work done with basic tools. But many farmers lost the tools they need in January's earthquake.

VOA: standard.2010.04.02

He said his government will work hard to end piracy, but he said the problem of poverty will first have to be tackled.

VOA: standard.2009.10.30

"There are so many people who work so hard everyday but they can't realize the benefits of that hard work to the extent that they should."

VOA: standard.2009.11.03

But he says there's more to it. "It has been hard work.

VOA: standard.2009.08.21