muni is tearing up the ground around nineth and irving treat. that's going to affect the popular end juda rail service. shuttle buses will be used instead for the next four weekends. crews are replacing sewers and water lines aunnd upgrade boardg areas. >>> dozens of young men and women are about to begin the fight of their lives. it's their career. the san francisco fire department graduated 122nd class of recruits today in a ceremony on treasure island. the fire chief says this group is very diverse. >> we're also proud to have spanish and cantonese members in the clash as well as one member who is fluent in greek. the new recruits put on a clinic in fire fighting technique and multi-story rescues. skills they will be putting into