Their "Level" system is so ill-defined. In The Consultant, Sitwell was shocked to learn there even was a Level 7. When Loki steals the Tesseract, Fury says, "This is a Level 7. As of right now, we are at war." This makes it sound like Level seven is pull out the stops, all hands on deck, end of the world type stuff, but then they classify the Overkill Device as level 8 threat? Bigger than the Tesseract? Really?