Who can you really count on?

Neighbor, after Katrina.
First, a story:
When Hurricane Katrina struck in 2005, one victim was political scientist Daniel Aldrich. He had just moved to New Orleans. Late one August night, there was a knock on the door. "It was a neighbor who knew that we had no idea of the realities of the Gulf Coast life," said Aldrich, who is now a political scientist at Purdue University in Indiana. He "