It's not a little problem, it's not a maybe problem, ... The viaduct is just a question of when. If you're on the lower level when it goes down, you're dead.

If land use changes to make [a neighborhood] not attractive, then you spent a lot of money building tracks where no one wants to ride it.

Streetcars have this wonderful ability to be pleasant to be around. They're not spewing exhaust at you. They're easy to get on. For the most part, they have the advantage over a bus that, like in all rail systems, people have great confidence that there's another one coming. They know where it will go.