Sullivan & Cromwell LLP partner H. Rodgin Cohen explains why he's concerned about a strict Volcker Rule. "I fear that if the Volcker Rule's implementation adversely affects the markets, it will be too late by the time they liberalize it." Cohen goes on to explain that he's worried about the possibility that "markets start to go into disarray or move out of the United States" if the rule is applied too narrowly. For more from Cohen, watch "H. Rodgin Cohen: Greece 'not a problem' for United States." -Katie Roof