I interviewed with a total of 10 people on site. The SQL technical interview consisted of an oral and written exam. They also required a presentation. At the end I met with the person in charge of security, she was not the best communicator and made the interview sound more like an interrogation (almost like a TSA agent) . She explained a little about the process of getting the security clearance and how it required people with no criminal background, no drugs, etc. then followed with a question: "So, do you have anything you want to tell me now? It is better to disclose now than find out later". It was a very awkward moment... Overall, I did not have a great impression.