The Week That Was: US accuses China of hacking businesses

3:45 PM ET Fri, 23 May 2014

CNBC's Tyler Mathisen looks back at the week's top business and financial stories. Trading was quiet going into the holiday. AT&T agrees to pay $49 billion for DirecTV and its customers. But Pfizer's offer for AstraZeneca was turned down. And GM announced its 30th recall in the past five months.