CNN has told Connie Chung, one of the its most prominent hosts, that it has dropped her prime-time show, effective immediately. Although CNN asked her to stay in some other capacity, she declined and will leave the network, an associate of Chung said Tuesday night. Chung, a longtime news anchor who worked for the three major broadcast network news departments before joining CNN last summer, was informed of the decision by Jim Walton, the new president of CNN, the associate said Tuesday. The show, "Connie Chung Tonight," which is usually broadcast at 8 on weeknights, had been suspended for coverage...