Couldn't get the meaning of your post, since equipping the aircraft with Nuclear tipped weapon doesn't mean they become effective deterrant. Since Airborne jets are always vulnerable of getting shot down by long range SAM's and most of all, if PAF is looking to equip its jet with Nuclear weapons then certainly they need to show some high standard in maintainance, since just imagine the prospect of Fighter jet carrying nukes getting crashed in own's territory.
Surely you are not redefining deterrence here, are you? Any platform is vulnerable, inclusive of the venerable cruise/ballistic missiles. So its ridiculous what you are trying to imply above.
And your latter part of nuke carrying AC crashing in own territory is really hilarious. If you want to imply an explosion out of that in own territory ...... then you are back in the 40s and surely need to read up a whole load before posting here.
Take care to be careful in what you post and try to understand what things are. There is a whole loads of experience here, and while we may not agree with them, some of them are far senior and superior to us in terms of knowledge and experience.
Just please dont shoot off for the heck of posting
thanks