Myth #5: Major NIE judgments were based on single sources: Overwhelmingly, major judgments in the NIE on WMD were based on multiple sources\ufffdoften from human intelligence, satellite imagery, and communications intercepts. Not only is the allegation wrong, but it is also worth noting that it is not even a valid measure of the quality of intelligence performance. A single human source with direct access to a specific program and whose judgment and performance have proven reliable can provide the "crown jewels"; in the early 1960s Colonel Oleg Penkovskiy, who was then this country's only penetration of the Soviet high command, was just such a source. His information enabled President Kennedy to stare down a Soviet threat emanating from Cuba, and his information informed US intelligence analysis for more than two decades thereafter. In short, the charge is both wrong and meaningless.