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A new film - Who is Dayani Cristal - traces the steps of immigrants entering the US illegally from Mexico after the body of an unidentified immigrant is found in the hostile desert of the American Southwest.

We also meet a graphic designer who maps cities by using her nose to sniff out the smells of that particular place. Sudanese immigrant women in California describe how they go to great lengths to enjoy their cherished smoke bath – or dukhan. Also, America’s love of Japanese ramen soup is on display at a massive food festival in Los Angeles. And Merrill Garbus of the American band, Tune –Yards, explains her eclectic global musical influences.

(Picture: A scene from Who is Dayani Cristal, which follows the journey a migrant's body undergoes once it's found along the US-Mexico border, Credit: Marc Silver)