I can't give you the figure you asked for in the first part of your question. We don't have that kind of data, and we don't have that historical analysis.
I would certainly say that there has been significant federal investment in specific projects and specific locations over time, up to the recent public transit capital trust of $400 million a year, which expired in 2010. So there's no question the federal government has played a role, and there's no question it has been beneficial.
What we're putting on the table is that these are individual incidents that have happened in specific places for specific reasons at a certain time. We believe what's really important here is that we step above the one-off projects, look at the national picture, and develop the principles and approaches. Then we can go forward in this question with a sense of national purpose applied locally in its respective relevance, depending on the specificities of the place.