I can't help thinking that the high net worth individual posing the question, would be smarter investing in some technology that gave him/her a better idea of whether WW3 was about to start so that he/she didn't have to go flying in the first place.
On the basis that neither conventional a/c nor FBW a/c were designed with this scenario in mind, would aforementioned individual want to put him/herself in this position in the first place?