CNN曾报道,3月12日,美国海军在对一艘出海活动的朝鲜潜艇进行监视时失去线索,由于该艇属于执行特种渗透任务的小型潜艇,加之失踪水域靠近韩国海岸线,因此美韩颇为紧张。有意思的是,这件事也暴露出美国对朝鲜的监视活动可谓严密,稍有风吹草动,美国都会感到神经紧张。美韩监视立体全面就涉朝情报来源而言,卫星是美国获取这个“黑洞国家”动向的“最大功臣”。从20世纪60年代以来,美国持续运用“锁眼”(Key Hole,KH)系列照相侦察卫星监控朝鲜动向,这种有夜视和变轨能力的卫星始终是朝鲜极为 CNN has reported that on March 12, the U.S. Navy lost track of a North Korean submarine operating in a sea-going operation. As the boat is a small submarine carrying out special infiltration missions and the missing waters are close to the coast of South Korea, the United States and South Korea are rather tension. What is interesting is that this incident also revealed that the U.S. surveillance of North Korea can be described as rigorous. With a slight disturbance, the United States will feel nervous. US and South Korea monitor three-dimensional comprehensive As far as information sources are concerned, satellites are the “biggest contributors” to U.S. access to this “black hole state.” Since the 1960s, the United States has continued to monitor the movement of North Korea by using a series of “Photographic Keyhole (KH)” camera reconnaissance satellites, which are always extremely North Korean