From the comments in that article.

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So there are two more aspects to the Nunes memo and the #ReleasetheMemo movement.

First, it is now clear beyond dispute that the #ReleasetheMemo activity has been taken over by Russian bots. That fact needs to be in every discussion of this issue.

Second, though, while the article quotes several intelligence experts about the kind of information needed for the original FISA warrant, the warrant that is the subject of the Nunes memo is the renewal application signed off on by Rod Rosenstein. According to Ron Klain on MSNBC, in order to renew a FISA warrant, the supporting affidavit needs to document that material information has been obtained from the original warrant. If the original warrant came up empty, the warrant will not be renewed. Accordingly, whatever Rosenstein signed had to include an itemization of the conversations between Page and the Russians that had already yielded usable intelligence.

This is a fact worth keeping mind.

"Facts are stubborn things; and whatever may be our wishes, our inclinations, or the dictates of our passion, they cannot alter the state of facts and evidence". John Adams

"A dishonest man can always be trusted to be dishonest". Captain Jack Sparrow