NPR’s story is here, don’t miss the analysis from MIT colleague Charles Stewart:

Stewart says it’s not at all clear what causes long lines. He thinks better registration systems will help, but he’s not convinced that more early voting will ease the wait on Election Day. That could just as easily be the result of too few places to vote.

“No one can tell you nationwide how many precincts there were, and how many people were manning those precincts, and how many voting machines were at each of those precincts,” he says. “That’s data that’s not going to be released probably until November of this year.”