The top U.S. military commander in the Pacific on Tuesday defended the decision to delay a key missile test, saying the U.S. has already demonstrated its capabilities to North Korea and suggesting there's no need to further inflame tensions with an "unpredictable" leader. Adm. Samuel Locklear, commander of U.S. Pacific Command, stressed that the U.S. has a "credible ability" to intercept any missile launch from North Korea -- as the regime reportedly prepares for a launch as early as Wednesday. But Locklear voiced concern that North Korea's new leader Kim Jong Un is "more unpredictable" than his late father Kim...