My computer is malfunctioning so I must be brief. I've heard what Adam Schiff has had to say, and I've been giving a lot of thought to the actions of Devin Nunes. It is clear to all now that Nunes is as loyal to Trump as is, say, Kellyanne Conway (and maybe more loyal than Bannon or Melania). Everyone understands this.
What we must also understand is that these events make sense only when viewed in the light of my theory that there is a pro-Trump faction within the intel community.
The NSA showed intercepts to Nunes that were not shared with Schiff or any non-loyalist to Trump. Nunes immediately shared what he learned with Trump and no-one else.
Suddenly, Manafort and Stone and Page want to testify in open hearings.
Think about it. The great trap inherent in such testimony is perjury. What if those three men give testimony which does not conform to information on an NSA intercept? Manafort, Stone and Page would naturally prefer to testify after
learning what the NSA had overheard.
Finding out what the NSA had obtained was Nunes' purpose. Now that he has completed that task, the Trumpers know how to game the proceedings. They know what they may safely say -- and leave out -- without fear of a perjury trap.
In all likelihood, Trump loyalists in NSA helped Nunes screw us over.