Roger Wicker actually said...

"So you do not know?"

"We do not want to overregulate to the point where we are stifling innovation and investment."

"Well, when you get back to me, sir, would you also let us know how Facebook discloses to its users that it is engaging in this type of tracking?"

"There have been reports that Facebook can track a user's Internet browsing activity even after that user has logged off of the Facebook platform."