But she realized then that his mind would forever be on the march, always requiring something newer, better and more perfect.

VOA: special.2009.09.26

"We're looking to get off fossil fuel generation, whatever it might be, and we need to bring these newer technologies in.

VOA: standard.2010.03.23

He adds that the newer version has a shorter launch time, better deterrent capability, and that it is a two-stage rocket using solid fuel that is highly maneuverable.

VOA: standard.2009.12.18