I think that there are three big issues- the NRC prevents development of gen IV reactors, there are a lot of very wealthy people in the oil industry who don't want to see nuclear succeed, and the public is scared to death of radiation and reactors blowing up like bombs because of the media coverage of Fukushima and because of a lack of knowledge. That said, I think that the only thing that can be said definitively is that the industry will either go up or go down. So I agree with PBD on having a backup, I try to keep contacts in the mechanical/civil type fields from my hometown in case I ever need to jump ship and get a job designing buildings or heating systems.