Biophthora means end of life- all life. People tend to forget nuclear proliferation and the stockpiles of nukes still around. In this age of concerns over global warming and asymmetrical warfare, it seems the West has forgetten all about an all-out nuclear war. Most people falsely believe in limited nuclear war or the old first and second strike nuclear war. If Russia was going to attack the best way to kill the US and the world would be to launch missiles in sequence for a timed attack so that all warheads arrive at every target at the same time, giving no time to respond unless the US launches everything as soon as the Russian launches are spotted. This is TOT (Time On Target). Russia could make that decision easily and has a doomsday device called Perimeter to counter with what is left in inventory after primary and secondary targets are hit. The US and West will almost certainly pause, UK and French nukes only used in retaliatory strikes. Since the old deterrent of MAD no longer applies, the world we live in is far more dangerous than in the Cold War. Someday life might be a matter of survival of days, weeks, months, or a few years- then extinction.