In Philadelphia, a warehouse fire this past week killed two firefighters and left neighbors angry because the building was abandoned. The city faces the same challenges as many others across the country - it has too many big old and unused buildings. From member station WHYY in Philadelphia, Elizabeth Fiedler reports on the threat posed by vacant buildings.
ELIZABETH FIEDLER, BYLINE: John Mahoney walks his dog near the site of the fire. He wasn't surprised by what happened.
It's WEEKENDS on ALL THINGS CONSIDERED from NPR News. I'm Guy Raz.
PRESIDENT BARACK OBAMA: It's simple. If you make more than $1 million every year, you should pay at least the same percentage of your income in taxes as middle-class families do.
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RAZ: President Obama from his weekly Saturday video address talking taxes and his proposal for a millionaire's tax, the so-called Buffett Rule. James Fallows of The Atlantic is with me now for more on this story and others we're following. Hello, Jim.