Sullivan’s warning: journalists should be on high alert


              This cover image released by St. Martin's Press shows "Newsroom Confidential: Lessons (and Worries) from an Ink-Stained Life" by Margaret Sullivan. (St. Martin's Press via AP)
            
              This image released by St. Martin's Press shows Margaret Sullivan, author of "Newsroom Confidential: Lessons (and Worries) from an Ink-Stained Life." (Michael Benabib/St. Martin's Press via AP)
            
              This combination of photos shows the cover image for "Newsroom Confidential: Lessons (and Worries) from an Ink-Stained Life" by Margaret Sullivan, left, and a portrait of Sullivan. (St. Martin's Press via AP, left, and Michael Benabib/St. Martin's Press via AP )
Sullivan’s warning: journalists should be on high alert