At its heart is a fundamental disagreement over the role of electronic anonymity in a democratic society.
"There's a fundamental disagreement on the terms of engagement," he added.
"Probably more than any other relationship," he said, "there's a fundamental disagreement at its core."
Both countries can no longer paper over this fundamental disagreement.
Underlying all the individual issues is a fundamental disagreement about the proper role of the trade organization.
On the subject of territory, however, fundamental disagreements quickly arose.
One fundamental disagreement between the companies and the union concerns stability of employment.
We have a fundamental disagreement on the role of the central government.
There was no fundamental disagreement as to which procedure to adopt.
Indeed, they have a fundamental disagreement about the role of all trustees.