I have been offline most of these past few days and thus not weighing in on daily developments. But let me mention three items whose similarity concerns cast of mind.
With Ukraine and Crimea suddenly looming as potential [WW I-style] Sarajevos, the usual rhetoric of credibility and the horrors of appeasement comes blaring from the usual quarters. People who, a week ago, could not have told you if Crimea belonged to Ukraine—who maybe thought, based on a vague memory of reading Chekhov, that it was Russian all along—are now acting as though the integrity of a Ukrainian Crimea is an old and obvious American interest. What they find worse than our credibility actually being at stake is that we might not act as though it always is.
As the years go by, I am more and more convinced that the immediate, fast-twitch talk-show responses on what we "have" to do about some development are almost always wrong, and the calm, day- or week-after reflections about proportion, response, and national interest are almost always wiser. If I could, I would put all cable-TV discussion of breaking-news crises on a 24-hour delay. Maybe there has been a case in which immediate reflex-response to big news has seemed wise in the long run. Right now I can't think of any.
Naturally this reminds me of an adage from the piloting world: In most emergencies, the crucial first thing to do is ... nothing. Take a deep breath, calm down, steady your nerves, count to 10, and then "fly the airplane" as you begin applying knowledge rather than panicked instincts to the options at hand. Which brings us to: