A new report on child poverty has found more than 13 million American children now live in families with incomes below the official federal poverty level of $22,000 a year for a family of four. The number of American children living in poverty has increased by 2.5 million over the past ten years. The National Center for Children in Poverty says another 16 million children live in low-income families but are ineligible for public benefits because they live in households that earn slightly more than $22,000 a year.