Hello, Mr. Collins. Thank you very much for being here.
I first want to touch upon some testimony that was given in front of your committee by Mike Schroepfer, the chief technical officer at Facebook. To me it seems that this whole situation began, as you said, with an article in The Guardian. Since then Facebook has finally admitted that probably 87 million Facebook profiles were compromised, one million of them in the U.K.
Under questioning regarding the influence on the Brexit referendum, Ms. Elliott said that the campaign was run based on email lists, that it had acquired email lists of people from some source—Mr. Kogan's app. Mr. Schroepfer goes on to say that it could not have been his app, because he didn't acquire an email list. He said that AggregateIQ must have acquired that data from some other source.
Have you investigated what other source that could have been? It seems to me we're all chasing the same data, but the chief technical officer is now saying that it could have been some other data.