The inquiry has now moved on to hacking, and has clearly caused some concern among the News International legal team.
During questioning a lawyer for News International walked up to its counsel, clearly worried.
He was angrily told to sit down by LordJustice Leveson.
News International's concern seems to be that the inquiry has asked to see a legal document that so far has not been released by News International.
The document is a 2007 report by the legal firm Burton and Copeland (London) on phone hacking.
We don't know what it said, but if News International executives learnt from that report that hacking was more widespread than 'one rogue reporter' then that would be very serious indeed.
It would mean they had evidence that hacking was more widespread whilst they were claiming it was not. Perhaps misleading the police and shareholders.
But all this is speculation; we don't know what was in the report or - yet - whether News International will agree to release it to the inquiry.