As a part of a continuing relationship between the NSF, the US Fish & Wildlife Service and the eRulemaking Research Group, you can access the corpus of emailed public comments submitted about "Designating the Northern Rocky Mountain Population of Gray Wolf as a Distinct Population Segment and Removing This Distinct Population Segment From the Federal List of Endangered and Threatened Wildlife." There you will see a suite of tools for search and duplicate/near duplicate detection developed by researchers at Carnegie Mellon University. This NSF-seeded, agency-supported effort is a nice example of dg.o research at work.