Steven White (right) helps serve dinner at the Salvation Army soup kitchen. Pam Fessler/NPR hide caption

itoggle caption Pam Fessler/NPR

Three Cups of Tea author Greg Mortenson, with son Khyber and daughter Amira, sit with students at the Gultori War refugee school in Pakistan. A 60 Minutes report questioned some of the stories Mortenson tells in the book and his charity's use of funds. Deidre Eitel/PR Newswire/AP hide caption

itoggle caption Deidre Eitel/PR Newswire/AP

Homeland Security Secretary Janet Napolitano said a warning will only be issued if there's specific information about a credible threat. Still, on Sunday night her department warned state and local law enforcement to be prepared for the possibility of an attack. Jeff Roberson/AP hide caption

itoggle caption Jeff Roberson/AP

Philip Doud and his girlfriend, Cathy Espong, sit in their new one-bedroom apartment. They both lost their jobs and were found living on a San Diego sidewalk during a survey of the city's homeless population last fall. The Department of Veterans Affairs helped move the couple into permanent housing as part of a campaign to end homelessness. Pam Fessler /NPR hide caption

itoggle caption Pam Fessler /NPR

The grand two-story lobby of the Times Square Building boasts marble floors and gold-trimmed ceilings. Common Ground redeveloped the once-dilapidated building into 652 units for low-income and formerly homeless tenants in 1991. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR