NEW HAVEN, Conn. -- Civil rights activist the Rev. Al Sharpton is in New Haven, leading a rally and march in support of New Haven public service workers. In February, Mayor John DeStefano laid off dozens of city workers, including 16 police officers. Betsy Rosario, who has worked for New Haven's Board of Education for years as a security officer, said she's not sure if she will have a job. Of the 80 workers DeStefano's administration has laid off, five of them were in her union. "We don't have a contact. We haven't had one and haven't had a raise...