Bob Barker pleaded with city officials to close the Los Angeles Zoo's pachyderm exhibit and allow its three elephants to retire to a sanctuary. Appearing jovial when he arrived at Friday's City Council meeting, the veteran game show host and longtime animal rights activist turned serious when he began to talk about the zoo's elephants, Gita, Ruby and Billy. "I came here today to ask, to beg you ... to vote to release those elephants from that zoo," Barker said. "They have lived in misery." Gita and Ruby are ill, leaving only Billy on display. A fourth elephant, Tara, died...