I originally applied for an internship at a different department. My interview went well, however I didn't get the internship for whatever reason. However, the head of the department (the woman who interviewed me) liked me so much that she recommended me to a Senior Officer in the Development department (because she felt that would be a better fit for me) and that's how I ended up interviewing and getting the internship. How incredibly kind is that! Anyway both times the interview was fairly quick and easy. No trick questions; just basic ones that you'd expect. My first interview took maybe 30 minutes and my second only took 10 minutes, and we talked about random things for 20 more minutes afterwards. No second interviews for both internships.