Today there were numerous articles about the planned Central Subway for San Francisco. There is political backing for going forward with the project even with the objections from some who say it's too little for so much money. I wonder if today's anti-transit folk would argue against BART, the Washington Metro, or even the New York City Subways. They probably would.
The Central Subway for some of its faults is a good project section. It begins to address the North South rail deficiencies that plague the City and completes the second of three segments that will connect North Beach to Downtown and Bayview. I personally can't wait to use it.
Extra Note: Here is a link to a PowerPoint for converting the Geary Subway to BRT then LRT.