The Office of the Director of National Intelligence issued a statement on the limits of surveillance activities:

The statement that a single analyst can eavesdrop on domestic communications without proper legal authorization is incorrect and was not briefed to Congress.  Members have been briefed on the implementation of Section 702, that it targets foreigners located overseas for a valid foreign intelligence purpose, and that it cannot be used to target Americans anywhere in the world.
Also, ZDNet, sister site to CNet, made the following statement:
We're pulling the plug on this story, following Rep. Nadler's comments that debunk CNET's story.
I could be snarky and sarcastic, but instead I'll just say maybe we should consider our sources and claims a bit.

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