The bullet train's halting journey into downtown San Francisco

This is Part 4 of a four-part series about high-speed rail in California . Part 1: First Stop, Fresno . Part 2: Corn nuts and the bullet train . Part 3: Will the train be affordable? . Part 4: San Jose to San Francisco — easier said than done . Listen to the whole show: Inside High-Speed Rail . Rod Diridon Sr. says his favorite song is “Ol’ Man River.” The song is “about persevering against great odds, when the deck was stacked against you,” says the former Santa Clara County supervisor. “And wanting to be like that old man river that just keeps rolling along.”