reporter: the trading frenzyaround gamestop is the focuson capitol hill today. the house financialservices committee will hold a virtual meetingasking who wins and loses when short sellers,social media, and retail investorscollide. reporter:in the hot seat, robinhood ceo vlad tenev,citadel ceo ken griffin,melvin capital ceo gabe plotkin, and roaring kitty,the trader keith gill. reporter:no doubt lawmakers are furious and they want to havehearings about this. the problem is goingto most likely be that the systemis designed terribly. the system gets abused.and they need to make changes. - first of all, to me, this was a whole dogand pony show. - first, robinhood securitiesput the restrictions in place in an effort to meet increasedregulatory deposit requirements,not to help hedge funds. - you can read body language.you can see the way