Molly Ivins, battling breast cancer afresh, sounds as feisty as ever. The South Austin resident continues writing her left-of-center column, raising money for the journal where she forged her tart take on politics and, of course, cheerfully gigging Republicans such as the well-coifed governor of Texas. Ivins, 61, tongue-in-cheeked that Gov. Rick Perry's trip to Iraq this week will slow anti-American insurgents. "The mere sight of his hair will do a world of good," she said. She chatted with two visitors to her home office in Travis Heights without donning her wig of reddish-blond locks; her pate was nearly bald....