WASHINGTON—Squeezed by rising living costs, a record number of Americans -- nearly 1 in 2 -- have fallen into poverty or are scraping by on earnings that classify them as low income. The latest census data depict a middle class that's shrinking as unemployment stays high and the government's safety net frays. The new numbers follow years of stagnating wages for the middle class that have hurt millions of workers and families. "Safety net programs such as food stamps and tax credits kept poverty from rising even higher in 2010, but for many low-income families with work-related and medical expenses, they are considered too `rich' to qualify," said Sheldon Danziger, a University of Michigan public policy professor who specializes in poverty. "The reality is that prospects for the poor and the near poor are dismal," he said. "If Congress and the states make further cuts, we can expect the number of poor and low-income families to rise for the next several years." ...About 97.3 million Americans fall into a low-income category, commonly defined as those earning between 100 and 199 percent of the poverty level, based on a new supplemental measure by the Census Bureau that is designed to provide a fuller picture of poverty. Together with the 49.1 million who fall below the poverty line and are counted as poor, they number 146.4 million, or 48 percent of the U.S. population. That's up by 4 million from 2009, the earliest numbers for the newly developed poverty measure. The new measure of poverty takes into account medical, commuting and other living costs as well as taxes. Doing that pushed the number of people below 200 percent of the poverty level up from the 104 million, or 1 in 3 Americans, that was officially reported in September. Broken down by age, children were most likely to be poor or low-income -- about 57 percent -- followed by seniors 65 and over. By race and ethnicity, Hispanics topped the list at 73 percent, followed by blacks, Asians and non-Hispanic whites. ....Among those requesting emergency food assistance, 51 percent were in families, 26 percent were employed, 19 percent were elderly and 11 percent were homeless. "People who never thought they would need food are in need of help," Read on at: http://www.boston.com/news/nation/washington/articles/2011/12/15/census_shows...