I want to know the answer to the following question:
Which senators held a hearing about video game violence in 1993?
All the background I'm provided with is that "Game players were not the only ones to notice the violence in this game; US Senators Herb Kohl and Joe Lieberman convened a Congressional hearing on December 9, 1993 to investigate the marketing of violent video games to children.[e]". Is that enough to answer the question?