Amazon Web Services recently won a reported $600 million contract to build the U.S. Central Intelligence Agency (CIA) a cloud. But that cloud will not look like any other cloud on the planet.Given the sensitive nature of building an IT operation for one of the United States' most secretive organizations, details about how exactly the platform will be architected have been scant. But, at the company's annual user conference this week, Amazon Web Services executives offered some hints about the project.