An alarming new hack by China has penetrated the nerve center of the United States: its telephone network.David E. Sanger, the White House and national security correspondent for The New York Times, discusses what the scope of the attack tells us about China’s growing power.Guest: David E. Sanger, the White House and national security correspondent for The New York Times.Background reading: 

• The chairman of the Senate Intelligence Committee said hackers listened to phone calls and read texts by exploiting aging equipment and seams in the networks that connect systems.
• Emerging details of Chinese hack have left U.S. officials increasingly concerned.

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