Tom Hock, chief negotiator for BART, heads into the Caltrans offices in downtown Oakland, Calif., on Sunday, Aug. 11, 2013. (Nhat V. Meyer/Bay Area News
Tom Hock, chief negotiator for BART, heads into the Caltrans offices in downtown Oakland, Calif., on Sunday, Aug. 11, 2013. (Nhat V. Meyer/Bay Area News Group)