Just because Mr Greenwald is facing death threats as a result of his work doesn't mean he is 100% on his interpretation of the story. Also you forgot to mention that Greenwald's husband is a congressman which means they enjoy some enhanced security. Also you need to mention that the Brazilian's Worker's Party (the largest party in Congress) has Mr Greenwald's back. He is far from being alone in Brazi, there is a broad support from the establishment. It doesn't mean that his worries about his security are overblown, my point is that he enjoys a great deal of support especially from journalists, politicians and the Brazilian last instance's judges.