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Hello and welcome to the Time to Grow Up edition of Slate Money, your guide to the

business and finance news of the week. I'm Felix Salmonifusion.

I'm joined, as always, by Kathy O'Neill, the blogger at mathbabe.org.

Hi, Felix.

And Slate's Moneybox columnist Jordan Weissman.

Hello, Felix.

Hello, Jordan.

But most fabulously and most importantly, I'm also joined here. Now, this is an

interesting one. Kathy and Jordan are in New York. I am here in St. Paul, Minnesota, with Ron Lieber of the New York Times.

Hello. This is, Ron, Ron has a new new book out which we're going to talk about in a minute and you're going to love him and love it.

And we're also going to talk about how the Red Cross managed to spend half a billion dollars in Haiti and manage to build like six houses.

And we're going to talk about Uber again because we haven't talked about Uber in a couple of

weeks. And apparently if you have a money podcast, there's some kind of rule that you always

have to talk about Uber. But this time, because we have Ron on the show and he's written a lot

...