Welcome to "The Jungle," where casualties of Silicon Valley's last tech boom now find themselves struggling to survive.
Federal contractors lured undocumented immigrants to New Orleans after Katrina with loosened labor laws. Now the city's Latinos want police and immigration agents to stop harassing them.
Indian doctors and engineers are settling in the Midwestern city's suburbs, helping offset decades of population decline.
Rust Belt cities like St. Louis want to attract more immigrants, but few are integrating into African-American neighborhoods.