The report (Impact of Engineered Nanomaterials on Health: Considerations for Benefit-Risk Assessment) from Joint Research Centre (JRC) and the European Academies Science Advisory Council (EASAC) was issued in Sept. 2011 and the authors are still trying to get people to read it. The Aug. 16, 2012 online issue of Nature features correspondence from the authors citing the report,

Our analysis indicates that formulation of a coherent public policy will depend on scientists closing knowledge gaps in safety research, on gathering more data to connect science and regulation, and on training graduate students in nanotechnology research. Policies will need to be flexible to accommodate fresh discoveries in this rapidly advancing technology.

Getting notice for your work can be hugely difficult in an information-rich environment, so it’s not unusual to see efforts continuing over a year or more after publication.  Meanwhile a question persists, how many reports of this type do we need?