In global health, emergency vaccine stockpiles are like the insurance policy you never really wanted to take out: you resent the cost and have mixed feelings about never making a claim. Moreover, given that a stockpile is often a last resort, if you ever fall back on it, you have, in some way, already failed.
Measles is probably the best argument for why there needs to be global health, and why we have to think about it as a global public good. Because in a sense, measles is the canary in the coal mine for immunization. It is, you know, highly transmissible. The vaccine costs 15 cents, so it's not - you know, shouldn't be an issue in terms of cost.
People have criticized me for seeming to step out of my professional role to become undignifiedly political. I'd say it was belated realization that day care, good schools, health insurance, and nuclear disarmament are even more important aspects of pediatrics than measles vaccine or vitamin D.