On any given night in the United States, 750,000 people are homeless. President Bush's 2008 budget proposal includes more than $4 billion for homeless services. Governments, non-profits and churches have all been putting record money into programs, but homelessness keeps rising. It's a problem that vexes Philip Mangano, the executive director of the Interagency Council on Homelessness. The so-called "U-S Homeless Czar" was in Birmingham recently and talked with WBHM's Tanya Ott.