WASHINGTON (Reuters) - The U.S. government is making it harder for scientists to speak to their global colleagues and restricting who can attend an upcoming major AIDS conference, a congressman charged on Thursday.
http://www.reuters.com/newsArticle.jhtml?type=politicsNews&storyID=5511366
Rep. Henry Waxman said he has a letter showing that the Health and Human Services Department has imposed new limits on who may speak to the World Health Organization.

Under the new policy, WHO must ask HHS for permission to speak to scientists and must allow HHS to choose who will respond.