President Obama,in his weekly address, is calling on the Senate to give Judge Sotomayor a swift, rigorous and principled confirmation.

VOA: standard.2009.05.30

They farm tilapia - mostly in China. Sporns says the U.S.has an international certification process that is rigorous and will catch potential problems.

VOA: standard.2010.05.27

We will approach our task in a way that is thorough,rigorous, fair and frank,".

VOA: standard.2009.11.25

The riders and horses undergo rigorous training, including how to deal with the public in a variety of situations such as huge crowds of Olympic fans.

VOA: standard.2010.02.25