But he did not know what the problem was. The other man took the money and started away.

VOA: special.2009.08.29

The most serious problem was what to do with property owned by the federal government.

VOA: special.2009.07.23

There was what seemed to be a minor problem during the ground tests before launch.

VOA: special.2009.07.22

And I am still a little bit in shock." Ostrom was also asked about what her research might say about how we deal with the growing problem of global warming.

VOA: standard.2009.10.12