Enlarge / Twitter CEO Jack Dorsey (and his COVID beard?) testifying remotely before the Senate Commerce, Science, and Transportation Committee on October 28, 2020. (credit: Michael Reynolds | Pool | Getty Images) The Senate Commerce Committee met for a hearing Wednesday meant to probe some of the most seemingly intractable tech questions of our time: is the liability shield granted to tech firms under Section 230 of the Communications Decency Act helpful or harmful, and does it need amending? Section 230 is a little slice of law with enormously broad implications for the entire Internet and all the communication we do online.