Sources for positions of advocacy groups I notice that this has a template after this in the article Opponents such as the advocacy groups Organic Consumers Association the Union of Concerned Scientists and Greenpeace claim risks have not been adequately identified and managed and they have questioned the objectivity of regulatory authorities Would a page from these group s websites which states their position be acceptable to cite here I understand that primary sources should generally be avoided for backing up specific factual claims but it seems to me that the best source to cite for an advocacy group s position on something would be material published by the group itself 3