Volunteers at the Maryland Food Bank in Baltimore sort and box food donations on a conveyor belt. The bank started working with groups like the USO in 2013 to provide food aid to families affiliated with nearby military bases. Pam Fessler/NPR hide caption

itoggle caption Pam Fessler/NPR

A young immigrant caught crossing the border illegally is housed inside the McAllen Border Patrol Station in McAllen, Texas, last month. Pool/Getty Images hide caption

itoggle caption Pool/Getty Images

Wisconsin Rep. Paul Ryan, speaking before the start of the Virginia GOP Convention in Roanoke last month, has unveiled a new plan aimed at tackling poverty in America. Steve Helber/AP hide caption

itoggle caption Steve Helber/AP

Logan Kovach, 6, Matthew Kovach, 2, and Allyson Kovach, 5, eat a lunch distributed by the YMCA in Hopkins County, Kentucky. Pam Fessler/NPR hide caption

itoggle caption Pam Fessler/NPR

Susan St. Amour panhandles on a median in Portland, Maine. The city tried to ban loitering on medians last year, but a judge found the law unconstitutional. Caroline Losneck for NPR hide caption

itoggle caption Caroline Losneck for NPR

A woman and her daughter shop at a Greenmarket in New York City using Electronic Benefits Transfer, or food stamps. Government data show that fewer people were receiving the benefits in February 2014 than at the peak in December 2012. Andrew Burton/Getty Images hide caption

itoggle caption Andrew Burton/Getty Images

Toni Smart points to the oven that she uses to heat her one-bedroom apartment, which has no heat. Smart says she and her kids stayed in homeless shelters a few years ago. She says she'd rather be without heat than in the shelter. Pam Fessler/NPR hide caption

itoggle caption Pam Fessler/NPR