Canadian scientists are required to get [ 9 levels of approval ]( http://www.canada.com/news/Federal+government+puts+polar+briefings/10128511/story.html ) before they can tell the public how much Arctic ice has melted.
Ссылка: https://stallman.org/archives/2014-jul-oct.html#30_August_2014_%28Canadian_scientists_silenced%29