What Beijing's crackdown means for the future of Hong Kong

In Hong Kong, a new set of national security laws imposed by the central government in Beijing has gone into effect. The legislation restricts many freedoms enjoyed in the semi-autonomous territory, ushering in a new and ominous era for the previously freewheeling hub of international business. On the 23rd anniversary of the city’s handover from the United Kingdom to China, Nick Schifrin reports.