...by the man who obtained them:
At the beginning of 2012, I received an anonymous document in the mail describing what appeared to be details of the Heartland Institute's climate program strategy. It contained information about their funders and the Institute's apparent efforts to muddy public understanding about climate science and policy. I do not know the source of that original document but assumed it was sent to me because of my past exchanges with Heartland and because I was named in it.
Given the potential impact, however, I attempted to confirm the accuracy of the information in this document. In an effort to do so, and in a serious lapse of my own professional judgment and ethics, I solicited and received additional materials directly from the Heartland Institute under someone else's name. The materials the Heartland Institute sent to me confirmed many of the facts in the original document, including especially their 2012 fundraising strategy and budget.
An explanation which explains nicely the differing meta-data in the strategy memo versus budget and other docs.