Book excerpt: It was to be a simple mission. Nothing more than assessing whether a merchant in the fabled Israeli Diamond Exchange was involved in a scheme that could potentially embarrass the state of Israel. But nothing is ever that simple as Aaron Bergman - a former leader of an elite direct action team under the Mossad - should have known. Beginning to untangle a web that extends through both the American and Israeli intelligence community, Pike is forced to choose between his Israeli friends and his Taskforce mission