How China is limiting freedom of the press in Hong Kong

China expanded its crackdown on Hong Kong Monday, arresting a prominent pro-democracy activist and media owner. Jimmy Lai was paraded through his newsroom in a move designed to silence the press in the semi-autonomous territory. And it comes as the highest-level American official in decades visited Taiwan to reinforce U.S. ties to that island -- in defiance of Beijing. Nick Schifrin reports.