Putin Says Russia Will Spy on U.S. to Match Missile Development - The Wall Street Journal

1. Putin Says Russia Will Spy on U.S. to Match Missile Development  The Wall Street Journal
2. Putin warns Trump: We'll develop new nuclear missiles if you do  AOL
3. Putin threatens to develop new nuclear weapons if the US does so first  ThinkProgress
4. Opinion | America Could Lose a Real War Against Russia  The New York Times
5. Putin to Trump: We'll develop new nuclear missiles if you do  Reuters
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