The U.S. Missile Defense Agency official said the Obama administration has critical data on the U.S. missile defense system, in order to provide it to Russia to discuss declassification.
The government has been exploring how to ease Russian fears that the U.S. missile defense shield is aimed at combating Russia's nuclear arsenal.
Arms control advocates recommended exposure missile interception capability can provide a breakthrough, Russia, on behalf of the reduction of nuclear weapons. However, doing so would bring the charges Republicans say the government is undermining national security to appease Moscow.
In Wednesday's hearing questioning, the Missile Defense Agency Director Vice Admiral James Xirui En said he had revoked the security classification of the data, including the speed of the interceptor, to discuss with senior officials of the Department of Defense.
The missile defense system has long been a contentious issue between the United States and Russia. The United States has said that its function is to deal with the threat from Iran and North Korea. It said its interceptors will not pose a threat to Russia's huge nuclear arsenal.
Obama has twice changed the U.S. missile defense plans in Europe, Russia's strident opposition. He said the decisions is a better solution to the threat. But Republicans charged that their purpose is to relieve the Russian opposition.
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