ABC News
For the second time in five years, classes were canceled Tuesday for more than 500,000 Los Angeles public school students after tens of thousands of service workers, backed by the powerful teachers union, went on strike. Custodians, cafeteria workers, bus drivers, special education assistants and other members of the Service Employees International Union Local 99 walked off the job and hit the picket lines in the rain Tuesday morning after negotiations with the Los Angeles Unified School District came to a standstill. The 30,000 members of the service employees union are demanding higher wages and better working conditions.