And in the long term,they say, knowing where different genetic traits may be found on the map could lead to better plants.

VOA: special.2009.10.20

Lead paint can be a danger not only to people in the country where it is made.

VOA: special.2009.08.31

Mr.Mack also says developments in artificial intelligence could lead to a future where disabled patients could be cared for by a voice-activated robot.

VOA: special.2011.01.18