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Then-US President Barack Obama and then-Russian President Dmitry Medvedev issue a joint statement announcing their pursuit of a New START treaty in London in April 2009. (White House photo by Pete Souza.)

Reviving arms control, post-Ukraine: Why New START still matters

By Stephen J. Cimbala, Lawrence J. Korb | Nuclear Weapons

artist's conception of moon base

Interview: Rob Latiff on the worsening international security situation in space

By John Mecklin | Disruptive Technologies, Technology and Security