[lambda2001]

The last part is extremely true. I have known many engineers that worked on the B-2 and have since retired. There's very little chance many of them would come out of retirement and honestly I don't think the government would pay for that.

[azernik]

And even if they did, no one remembers that well the things they did decades ago.

[Bedon292]

And even if they did, would that knowledge help reproduce it on modern equipment? Going to have to rebuild all of the tooling and processes anyways.