Knowing how to answer the tough questions from the media, Smith-Valade said,is key.

VOA: standard.2010.02.25

I mean,I think that knowing how HIV basically gets transmitted is something that people are afraid, that people know that they have had extra-marital sex-the whole concept of men who have sex with other men-- it's a big taboo, and the region does not want to admit that we have these groups.

VOA: standard.2010.07.07

Knowing more about how the Yarkovsky effect changes an asteroid's orbit will help scientists better predict whether RQ36 will come near Earth.

VOA: special.2011.06.22

writer Dava Sobel tells the story about longitude and how the problem of knowing it was solved.

VOA: special.2010.07.14

It was just a matter of knowing where and how to tune in.

VOA: standard.2010.04.16