U.S. officials now believe Iran was responsible for a series of cyberattacks on American banks in September and on major energy firms in Saudi Arabia and Qatar. David Sanger, chief Washington correspondent for The New York Times, talks about the escalating tactics of cyberwarfare.
The U.S.-China economic relationship is under pressure again with allegations from the House Intelligence Committee that two top Chinese telecom firms are security threats. China responded by saying the report could damage relations with the U.S.
When the Soviet Union collapsed, its vast nuclear stockpile did not appear secure and the U.S. stepped in to help. Thousands of nuclear weapons have been dismantled with U.S. aid over the past two decades. But now Moscow says it's ready to pull the plug on the program.
Defense Secretary Leon Panetta told business leaders the Pentagon is developing capabilities to ward off attacks on the nation's infrastructure. He says foreign actors have already probed key systems that could cause damage and even death — and the Pentagon has a key role to play in stopping such efforts.
The Romney campaign is putting more meat on the bones of its defense policy, and the result is a muscular, almost hawkish posture. Foreign policy advisers to Mitt Romney and President Obama went toe-to-toe over military issues Wednesday.
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