Her later poems ???were wrung from me,??? with a sharpened edge of anger, she said. ???I had to write them.??? In ???Mulching,??? from her 2007 collection ???Still to Mow,??? Ms. Kumin described spreading old newspapers ???between broccolis, corn sprouts, cabbages and four kinds of beans.??? She sees old headlines about torture, suicide bombings and starvation ??? ???in this stack of newsprint is