The firing of some well-known local news personalities on CBS-owned stations in Los Angeles, Boston, and Chicago last week represented part of a wider layoff of at least 160 employees at CBS stations in 13 cities, the Los Angeles Times disclosed today (Wednesday). Reporting on the layoffs, the newspaper observed, "An economic slowdown, combined with changes in news consumption patterns and the migration of advertisers to the Internet, have contributed to a lean start to a year that was supposed to be nefit from a gush of political advertising." The newspaper noted that in February, when KCBS-TV, the local CBS station in Los Angeles, was reeling from the writers' strike, ratings for its newscasts plummeted 40 percent versus the same month a year ago.