Russia has threatened to deploy short-range missiles and jamming equipment in its Baltic enclave of Kaliningrad, bordering Poland, if the U.S. program goes forward.

• 一位奥巴马的发言人本周表示，当选总统只有在有关技术已经被证明是切实可行的条件下，才会支持部署这一导弹防御系统。