-------- high security costs -Yes. Would you have it any other way? -------- centralised (sic, unless you're British) power == transmission efficiency loss -Helps cut down on security costs, in this case, plus cuts down on management overhead, plus cuts down on transmission costs. This electricity is bound for San Antonio and Austin, and the infrastructure to send this electricity is largely in place -------- needs to be new a water source -Same with gas plants, coal plants, etc. You HAVE to cool a power plant. There are federal regulations as far as what gets discharged from a facility. Regulations about chemical/particulate contents, temperature, etc. -------- potential security risk -Yes, but security measures (physical security as well as security on control systems) are put in place to mitigate these risks, as much as possible -------- potential accident risk -Control systems monitor these units like you wouldn't imagine. -------- unknown costs of long term waste disposal -Federal regulations limit the ability to use all resources effectively; start there! -------- unknown costs of long term decommissioning -I don't know costs, but that doesn't mean someone else doesn't. -------- long build times (we need to fight climate change before 2014) -Nukes are the long term solution for large scale generation. Wind and solar can't touch this level of generation. Long term solutions take time to do correctly. -------- potential for nuclear technology to be leaked to rogue states -Like Arkansas? Seriously, you can get all you need to build a nuke from Wikipedia and a physics textbook. It ain't brain surgery. -------- not truly renewable -> requires uranium in short supply (at a reasonable cost) -How badly do you need Uranium? Afraid we'll run out before more WMD's can be built? It would be a shame to use it for useful purposes such as electricity. -------- massively unpopular with vast majority of people. -You don't like it, because it's unpopular. That makes sense. Could it be unpopular because most people don't know much about it? Nah, that can't be it... -------- historically has proven to be tons more expensive than original estimates. In UK it was sold as 'too cheap to meter', yet ended up overpriced, uneconomic and needing colossal UK taxpayer bailouts. -Good thing this doesn't involve the UK. Texans and Japanese. Good combination, in my book.