It was an interview done speculatively, and I'm not aware of any active work in this space.
So I wouldn't exactly take his limited view as a yardstick by which to measure how much data they are collecting and for what purposes.
"You can't tell me what to fuckin' believe!"
Well I wish they would let that apply to other groups then.
...when fits of creativity run strong, more than one programmer or writer has been known to abandon the desktop for the more spacious floor. - Fred Brooks, Jr.