PORTLAND, Maine - The Maine Center for Public Interest Reporting is out with an investigation: "Single Parents in Poverty: The Crisis No One Will Name." Senior reporter Naomi Schalit documents how a 500 percent rise in births to unmarried women has driven up the state's poverty rate, posed new challenges for schools, and threatens to darken Maine's future. Maine Public Radio's Morning Edition host Irwin Gratz talks with Schalit about the problem. She says she was first drawn to the subject a decade ago when interviewing people for a story about hunger in Maine.