What are the characterisitics of the new hybrid nuclear weapon design that make it better than the old design?

Question

The US is selecting a new design to modernize its nuclear weapons, according to the NY Times, and it refers to the design as a hybrid, a cross between the two weapons labs' approaches. What's tthe difference between this design and the older design, and what makes it more reliable, more secure, etc?

Answer 1

The details about nuclear weapons design is classified so we have not been nor will we be told the difference. The only thing we know is that one uses more theoretical computer generated models and the other depends more on data from underground test.

Answer 2

a thanks to end the conflict could were for the jap to are growing to be genuine and surrendered even as that they had the threat. ending the conflict by technique of 'established' ability became no longer truly an decision - human beings were death on the fingers of the jap in occupied Asia - so there only wasn't the time - and the estimate of saving 1m Allied lives became the clincher.