CNN has fired producer Chez Pazienza after the network brass realized he had been blogging at his own left-wing site and several others over a period of years: In a phone interview this morning, Mr. Pazienza, 38, said he joined CNN as a senior producer in January 2004 and has consistently received positive performance evaluations of his work. He spent his first year at CNN at the network’s headquarters in Atlanta, then moved to New York to work on “CNN Daybreak,” which has since been canceled, then “American Morning,” which is shown Monday through Friday, from 6 to 9 a.m.Mr....