[SkyDancer]

My understanding is the electronics and codes get nullified after a few months if not renewed; guess he could somehow get the nuclear stuff out.

[CodeToad]

The problem with nukes is that they are easy to alter. The coding and firing mechanism may need replaced, but the person has the nuclear materials at hand.

[null and void]

My understanding is the electronics and codes get nullified after a few months if not renewed; guess he could somehow get the nuclear stuff out.

My understanding is make a single mistake in disassembling them, and the explosives are set off, the fissile material fizzles, releases a huge flood of neutrons, and melts down to a blob of highly radioactive formerly fissile daughter elements.

They might get it right on the 5^th or 20^th try.

Or not...