Cyberwar: Chinese hackers have obtained the designs for more than two dozen major U.S. weapon systems, including the Navy's missile defense system and our latest fighter. Our very national survival may soon be at risk. When President Barack Obama meets with Chinese President Xi Jinping for the first time on June 7-8 in California, we hope he will not bow but rather demand the Chinese stop their cyberwar against the U.S. that has reaped for them the designs for more than two dozen major weapon systems used by the U.S. military. According to a previously undisclosed section of a confidential...