I am not talking now..i am talking 20-50 years into the future..just imagine this scenario..Pakistan's population has exploded, there are now close to 300 million people. Severe climate change has resulted in drastic water reduction from the Indus. Pakistan facing mounting insurgency by Islamic radicals, total economic collapse launches another covert strike a la Mumbai, this time the casualties in India are catastrophic, 1000s dead. The pressure to India to respond is overwhelming, India launches strikes on designated targets. Pakistan seeing that it has nothing left to lose preemptively nukes India. This is scenario i don't wish to play out.