Mississippi is about to find out. Decades of neglect have closed hundreds of bridges, putting the state at the forefront of America's infrastructure fight.
When a neighborhood isn't rich -- and isn't poor -- government tends to forget about it.
Gun violence costs lives -- and money. The financial burden can overwhelm governments, especially when they're small or struggling.
Other legislators aren't so sure.
"Pay for success" is changing the way cities confront the problem.