So we make buildings that require very little heating in the winter or indeed very little cooling in the summer.

VOA: special.2009.10.05

It will require a new mindset -- that we summon the will, as nations and as partners, to do what this moment in history demands."

VOA: special.2010.04.17

"And this will require that we continue to tackle the underlying problems that caused this turmoil in the first place.

VOA: standard.2010.04.24

"For those who wish to become citizens, we should require them to pay a penalty and pay taxes, learn English, go to the back of the line behind those who played by the rules.

VOA: standard.2009.06.19

"It is going to require more work, but I think that we can get something accomplished there and we can lock down loose nuclear weapons that could fall into the hands of terrorists."

VOA: standard.2009.05.19

"That's going to require a lot of restructuring. We're prepared,as a government, to help that process if we believe it is going to provide the basis for a stronger industry in the future.

VOA: standard.2009.03.30

Although we run it on a laptop so that we can monitor its operation, the algorithm itself doesn't require a lot of computer power and could easily be run from a chip that has the capabilities of one that's already in insulin pumps or in cell phones."

VOA: standard.2010.04.15