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  US climate expert says NASA bids to muzzle him   (Reuters)  Updated: 2006-01-29 13:44  NASA's top climate scientist 
said the Bush administration has tried to stop him from speaking out since he 
gave a lecture in December calling for prompt reductions in emissions of 
greenhouse gases, The New York Times said on Saturday. 
 In an interview with the newspaper, James Hansen, director of NASA's Goddard 
Institute for Space Studies, said that officials at the space agency's 
headquarters had ordered the public affairs staff to review his lectures, 
papers, postings on the Goddard Web site and requests for interviews from 
journalists.
 "They feel their job is to be this censor of information going out to the 
public," the Times quoted Hansen as saying, adding that the scientist planned to 
ignore the new restrictions.
 A NASA spokesman denied any effort to silence Hansen, the Times said. "That's 
not the way we operate here at NASA," said Dean Acosta, deputy assistant 
administrator for public affairs. "We promote openness and we speak with the 
facts."
 Rather, the spokesman said the restrictions applied to any and all NASA 
personnel who could be seen by the public as speaking for the agency. Acosta 
added, however, that while government scientists were free to discuss scientific 
findings, policy statements should be left to policy makers and appointed 
spokesmen, the Times said.
 The story was posted on its Web site and will be published in Sunday's 
editions.
 Hansen, a physicist who joined the space agency in 1967, is an authority on 
climate who directs efforts to simulate the global climate on computers at 
Manhattan's Goddard Institute.
   
  
  
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