If muller goes outside the report with even a sentence of additional information, the door is opened for the universe of material to be scrutinized.
Despite the admonition from the DOJ to stick to the confines of the report, never forget: Mueller, the Dems and the media are running this show. He will leverage every issue, every question, every response in a direction away from any attempt at getting to the truth.
Hate to be so negative, but I've been waiting for the 'next shoe to drop' since the Clinton years.