FILE – The Twitter splash page is displayed on a digital device in San Diego on April 25, 2022. U.S. lawmakers are anxious to hear from Twitter’s former security chief, who has alarmed Washington with allegations that the influential social network misled regulators about its cyber defenses and efforts to control fake accounts. The Senate Judiciary Committee announced Wednesday, Aug. 24 that whistleblower Peiter Zatko will testify at a hearing on Sept. 13 – the same day Twitter’s shareholders are scheduled to vote on the company’s pending buyout by Musk. (AP Photo/Gregory Bull, File)