MR LAX
Well you see this really troubles me, because as their colleague you should have known what their cover was, and their cover was that they were criminals, they hung out in bars pretending to be criminals on the run from South Africa, and that's how they made contact with other people who were likely sources of information.  In the case of Betty Boom, they pretended to be MK members, but in general that was their cover, they were pretending to be criminals on the run.  And you don't even know that, how could you have worked with them if you don't know that?