This week on our program, we look at how times have changed for the city of Pittsburgh,Pennsylvania.

VOA: special.2009.07.13

"The types of opportunities that are left for natural gas exploration in the U.S.have changed.

VOA: special.2009.10.23

School children are urged to write letters to writers whose books have changed their lives.

VOA: special.2009.10.12

These are some of the ways that mobile phones have changed lives in developing countries.

VOA: special.2010.05.03

In recent years, however, they have changed their beliefs about the causes of MS.

VOA: special.2009.01.06

Thirty of the fifty states have changed their constitutions to ban same-sex marriage.

VOA: special.2010.02.06

Over the years, the kinds of criminals on the list have changed.

VOA: special.2010.05.05

These iconic household goods have changed over the years, from wristwatches, radios and bicycles, to refrigerators and televisions.

VOA: standard.2009.09.28

Israeli Deputy Foreign Minister Danny Ayalon says times have changed since Israel agreed to the land-for-peace formula under the Oslo Accords in 1993.

VOA: standard.2009.04.17

Rumors about where James might play next season have changed almost daily since his contract with Cleveland ended July 1, making the Ohio native a free agent.

VOA: standard.2010.07.08

The political climate at the Conference appears to have changed for the better.

VOA: standard.2009.08.31

The circumstances,borders and threats may have changed, but that commitment continues."

VOA: standard.2009.09.17

And things have changed over the last generation or two.

VOA: standard.2010.07.14

But they say things have changed in Afghanistan since then and Secretary Clinton told the audience of mostly students that it makes sense to examine the strategy and tactics being used to achieve those goals.

VOA: standard.2009.10.06