Volunteers and advocates for people in St. Louis who are homeless say the city's failure to create a 24-hour shelter is "unacceptable" and endangering lives during frigid winter nights. Although a new 24-hour shelter has just opened, questions remain: Why did it take so long? And what of the millions of APRA dollars earmarked for homeless services that remain unspent? NPR Midwest Newsroom investigative reporter Kavahn Mansouri discusses his findings and shares his latest reporting.