I had also asked members to tell me how exactly we can defang Pakistan' nuclear canines. The best answer I got was that we should let ourselves get hit with nukes as long as we can finish Pakistan once and for all. I had stated that we aren't ready yet, that we should continue to pound the Pakis while taking the next few years to develop a real capability to capture every single Paki Nuke in one swift op.
Of all the points you've raised this is most easily answered. The short simple answer is we can't @ to develop a real capability to capture every single Paki Nuke in one swift op.
Back in the day when Obama announced a "surge" in Afghanistan , one of the stated aims was to de fang Paxtan of its N weapons. A SEAL team was specifically trained for this purpose & began sniffing around NWP sites in Paxtan for intelligence .
Fauji Foundation got wind of it & loaded the warheads on pick trucks & jalopies driving them around various cities in Paxtan to safeguard them from the Americans.
Result , the US panicked & reached terms with Fauji Foundation under which the US parted with specialised technology strategy & protocol to safeguard these weapons . You can look this up on the net for more details or for simple verification.
The larger point being we can't undertakes today what the US has given up on though our imperatives for doing so are much greater than the US's.
While such programs still do exist in the US , NATO , Israel & India their efficacy isn't guaranteed in the sense we'd be unable to secure 100% or even half of their warheads & fissile material or even destroy them at the site for the simple reason these warheads are dispersed across several sites.
The only option then is counter force targeting with or without conventional weapons & that's a completely different ballgame.