More than half a million people are homeless in the US, and this year the crisis has reached a tipping point with overcrowded shelters and homeless encampments taking over street corners. We follow one street medicine team in Los Angeles, Healthcare in Action, that believes they can help end homelessness one patient at a time. And an in-depth interview with Marcus Samuelsson, the world-renowned celebrity chef behind 25 restaurants internationally, including the famous Red Rooster in Harlem. He explains how he is using his privilege as a celebrity chef to promote diversity. » Subscribe to USA TODAY: http://bit.ly/1xa3XAh » Watch more on this and other topics from USA TODAY: https://bit.ly/3cfg40b » USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR. Executive Producer: Yasmeen Qureshi Senior Producer: Andrea Kramar Writers: Yasmeen Qureshi and Andrea Kramar Producer: Lamar Salter Lead Editor: Mark Apicella Reporters: Zulekha Nathoo and Ralphie Aversa Directors of Photography: Sam Rosenthal and Sam Russell Supervising Editor: Justin Schultz Motion Graphics Designers: Mike De Angelis and William Pennington Additional Camera: Andrea Kramar, Yasmeen Qureshi, Allen Dobbins and Tyler Scheffler Assistant Editor: Joshua Cheatum Sound Mix: James Panepinto Executives of Production Kate Gutman Russ Torres Robert Padavick Special thanks to: Humankind Team, David Hamlin, Maribel Perez Wadsworth, Nicole Carroll and Amalie Nash Additional Footage: Getty Images Associated Press Healthcare in Action Marcus Samuelsson Pontus Hook #Homeless #LosAngeles #Healthcare