In the lead up to the Iraq war and its later conduct, I saw at a minimum, true dereliction, negligence and irresponsibility, at worse, lying, incompetence and corruption.
You basically have a group of four spies who are chosen for a mission they feel for the fact of how competent they are and how their expertise and they're the right one for the job. But ultimately they find out they've been actually chosen for their incompetence.