I think what these people are trying to say - and a sensible approach - is to build the reactor by all means, but don't do it so close to a major city. No matter how safe a technology is, there is always a non-zero (very low) risk of something going wrong - the Fukushima incident is a case in point - till it happened, it wasn't thought possible.If the consequences in this case are too severe to comprehend - which I think they are, then its better to cut the potential risk by setting up the reactor in a less populated location - say Balochistan. Such a project will also bring much needed jobs in Balochistan, which should help the Pakistani government in its quest to pacify the local population.
India is building a number of nuclear power reactors - indigenous and foreign designs - but they are being built away from thickly populated areas. Large projects have been delayed by protests in several places - but I think its for the best because it forces the planners to be extra cautious. We have been very lucky that in 50+ years of operating nuclear power, there have only been three major accidents across the world. Lets continue to treat nuclear energy with a lot of respect and caution, pay heed to public fears and ensure that the next 50 years are free of any incident.
Pakistan should go in for nuclear energy - it is cheaper than coal/gas/hydro and doesn't emit carbon dioxide into the atmosphere - a major concern now. Most of the cost of producing nuclear energy is incurred during the plant construction - cost of uranium is a minor element in cost of electricity from a nuclear plant - so it won't be affected by any changes in prices of coal/gas/oil in the future.
Some people had asked about attacks on such installations in war-time. I don't think that's even possible - India and Pakistan declare to each other a list of their nuclear installations. An attack on any of these will be considered the same as a nuclear attack. Building the nuclear plant in the less populated Balochistan will also ensure that a large buffer zone can be created around the plant - where unauthorized people are not permitted - that will at least partly cut down the risk of a terror attack - something Pakistan can't wish away.