Japan has reportedly failed to detect the exact path taken by North Korea's short-range ballistic missile launches more than two times since May.<br /> Citing several anonymous sources,... Tokyo-based Kyodo News Agency said Japan's Aegis-equipped destroyer in the East Sea or its Air Self-Defense Force radar systems failed to detect the exact course of missiles fired by the regime in May and September.<br />Kyodo News said it was more difficult to formulate accurate readings as the missiles were flying at lower altitudes with more complicated flight paths.<br />The agency added the missiles are relatively easy to monitor from South Korea due the missiles being fired from a closer proximity to Seoul. <br />