“For decades, American presidents have threatened ‘first use’ of nuclear weapons against enemies in only very narrow and limited circumstances, such as in response to the use of biological weapons against the United States. But the new document is the first to expand that to include attempts to destroy wide-reaching infrastructure, like a country’s power grid or communications, that would be most vulnerable to cyberweapons.” The NYT on the Pentagon’s new plan to counter devastating cyberattacks with nuclear arms. (I miss the days when our biggest nuclear concern was that people were pronouncing it nu-cu-lar.)