One day in early March, as the coronavirus was spreading across the country, Margaret McCown was in her office at the Pentagon figuring out how her staff could work from home.
As McCown went over the logistics, she began to feel a sense of déjà vu.
A pandemic. Government on alert. Schools and offices closing. It was a scenario she had seen before. Just not in real life.
"That was that uncomfortable moment where you find yourself a little bit living in your own war game," McCown said.