I would like some opinions/advice regarding grad school. I have just been accepted into the grad program, and Im trying to figure out what would be a useful directon to take my studies. Since Id be doing my MS at the same school I earned my BS, I will not have to repeat all those 400/500 split level courses I took at the 400 level. This opens things up timewise for other areas of study. Within nuclear engineering, I enjoyed the nuclear physics type classes, and hated the thermal hydraulics and detector stuff. In my other classes, I enjoyed chemistry, materials science, C programming, EE/circuits and biology. Hated statics, dynamics, thermodynamics. So anyways, Im thinking about focusing on criticality saftey. Im just wondering, based on my given interests, what would generally be very useful to learn more about? Im interested in hearing from some of you out in the workforce.