Investigating journalist

Our organization (please take a look at our website: wikiran.org) is looking for an investigating interviewer. That means, calling to people on behalf of Wiki Iran, asking specific questions given by us. Maybe it's better called a journalist, we quite often want to receive a comment from someone about the things we publish.
We're looking for brave, bold, native English speaking, with an urge to the truth, to doing the right thing.

Please let me know,
Mia on behalf of Wiki-Iran