May Day Immigration March -

May Day Immigration March –

Immigration costs, benefits unclear as immigrants near record share of U.S. population

Immigrant families account for 61 million people in the U.S., according to research released Monday that raises questions about the extent to which immigration affects everything from schools to congested cities to the future of Social Security. The level marks a staggering increase over the past 45 years, from 13.5 million in 1970, according to the…