From what I have read, the nuclear programs for both subs and swo appear to be quite lengthy and stringent in nature, especially with the academics. For all this trouble, does completing the nuclear pipeline really give an officer an edge in terms of assignments and promotions? Apologies for the ignorance, but are all subs of the nuclear variety? I thought they were not. If so, do all prospective sub officers go through nuke (power?) school nonetheless? And, why is there a nuclear option for swo? I did not believe any surface ships had nukes. But, then again, I am not this forum asking questions for a reason. Thank you.