Imagine an overheard conversation between a tall African American ('B') and a slim, foreign sounding guy ('D') in a DC burger joint:
'B': "Thanks for the help with the Middle East stuff at the UN 'D', especially as we kept the Kyrgyzstan thing so quiet between us. We are working well together, don't you think? Now how about something to make me look good in front of the cameras and take everyone's mind off that oil spill down south?, Nothing of any importance, but well, you know, you scratch my back?"
'D': "Well, I don't have much 'B', but... Oh! hold on, there are some useless mouths at the SVR who have gone native, and...."