[Goldman Sachs executives say the debt ceiling impasse poses real risks to the dollar] May 10, Goldman Sachs Group Global Finance Department co-head Beth Hammack said that failure to find a solution to the debt ceiling impasse in the United States will pose a threat to the status of the dollar. & nbsp; "the dollar is at real risk," said Hammack, who is stepping down as chairman of the Treasury's borrowing Advisory Committee for about five years. "anything that threatens its status as a global reserve currency and as the safest and most liquid asset in the world is bad for the American people, the dollar and the US government."