<>From: Stu - PM
Date: 16 Nov 17 - 05:39 AM
"And with nothing to tell us which 10-30% that makes the whole dossier unreliable."
Hard to get your head around, isn't it? Go away and have a think and the answer might come to you at some point. Here's clue: think about facts, about science and how that is presented.

Nothing to go away and think about.
There is a dossier, the author of which says that it is only 70-90% accurate. If he doesn't say which 10-30% he believes is inaccurate, then any information he's given in that dossier is called into question.