Trading platform Robinhood clamps down on retail investors amid stock gains

US online brokers like Robinhood are reining in certain trades as scrutiny grows over retail investors buying up a handful of stocks and sending their values soaring. We take a closer look at the debate shaping up on Wall Street. Also, France records its worst annual decline in GDP since World War II, while the country's anxious restaurant owners brace for the possibility of further health restrictions.