"(...) In other fields we may be less sure. We must, for example, balance the gains of weather modification against the hazards of protracted drought or storm.
The Government has the clear responsibility to weigh the importance of large-scale experiments to the advance of knowledge or to national security against the possibility of adverse and destructive effects. The scientific community must assist the Government in arriving at rational judgments and interpreting these issues to the public. To deal with this problem, we have worked out formal procedures within the Government to assure expert review before potentially risky experiments are undertaken. And we will make every effort to publish the data needed to permit open examination and discussion of proposed experiments by the scientific community before they are authorized. (...)" http://www.presidency.ucsb.edu/ws/?pid=9488#axzz2hoTn1hn4