The team says the bacterium was changed so it cannot cause harm if it escapes.

VOA: special.2010.07.20

But he said if people changed their mindset, there could be a world without poverty.

VOA: special.2010.06.16

And if adults decide they want another name, they can legally have it changed.

VOA: special.2009.07.06

At the news conference, Mr.Obama said, if the system is not changed, will lose health insurance each day.

VOA: standard.2009.07.23

How will Iran treat him if he is a defector who changed his mind and returned home?

VOA: standard.2010.07.13

Khamenei asked Mr.Obama if what he called America's "hostility" towards the Iranian nation has really changed.

VOA: standard.2009.03.21