Salon.com Politics: "When asked to respond anonymously to a survey regarding their work that was conducted by the watchdog groups Public Employees for Environmental Responsibility and the Union of Concerned Scientists, some scientists received memos from higher-ups ordering them not to answer, even from home and on their personal time."

...

"Forty-four percent of those who work on endangered-species issues said that they have been ordered to avoid findings that would require greater protections for wildlife. And one fifth of the agency's scientists who responded to the survey revealed that they have been personally directed to alter or omit technical information from scientific documents."

(Via Salon.com.)