“…As Garthoff notes in an article on intelligence estimates, "it would be foolish to base our judgements only on what they say, and not also on what they do" [Garthoff, (1978), p.26]. It is here where the balance between capability and intentions comes into play as intentions themselves may in fact be limited by an opponent's resources, perception of risk, experience, and so on (Jackson and Frelinger, 2009;Schneier, 2006;Stech and Hoffman, 1982). The importance of focusing on intentions and capability is borne out by a study on success and failure in terrorist operations which found, not entirely surprisingly, that when there is a mismatch between intention and capability there is a higher likelihood of failure (Jackson and Frelinger, 2009).…”