The leak could only come from the top, as a political payback gesture on the way out of the door.
Its also a good test to see where the Americans are spying on Britain.
Special relationship (in spying) or not, they cannot but spy! Its their nature!
Which tells you where to ultimately trust.
Id dump the ww2 5-eyes spying culture, given brexit. Replace it with a franco/german/british joint venture, that looks forward. not ec, but still euro.
Peter's ruminations 