Need for Home Care Workers Grows, But They're Exploited Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Marjorie Salmon is Bob Dettmer’s round-the-clock caretaker. Mr. Dettmer, 77, has Alzheimer’s and Parkinson’s diseases. ( Jackie Molloy for The New York Times ) Produced by Jeevika Verma and Polly Irungu Hosted by Tanzina Vega Produced by GBH, PRX and WNYC Studios