by Glenn Greenwald from Salon. The article provides an excellent survey of the many journalists who have lost their jobs in mainstream media because of their unacceptable views--unacceptable to the rulers of the Empire.
However, he does miss one that I remember--Ray Bonner of the NY Times for reporting on a massacre in 1982 by the US supported Salvadorean army. Technically, he wasn't fired--just given a desk job. He quit soon afterward.
Such disciplinary actions like this serve as warnings to many other journalists not to stray to far from the capitalist party line.