Reporters are no different from big business and political interests with regard to the Clinton Foundation.
They have likely make donations for access.
It will be interesting to see which news organizations and political concerns do the most indept investigations into the Clinton Foundation funding. Those organizations and concerns may fear what they might find.
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Info on the overall Clinton Foundation at:
http://www.discoverthenetworks.org/funderprofile.asp?fndid=5382&category=79
The above link has a substantial amount of information about the Clinton Foundation, its donors, its grants, its sub-programs, etc.
Thanks Tom!