Love antique shops and garage sales? Journalist Alison Stewart explains why we're so attached to collecting stuff. Chris Ying's global sausage quest has led to a comprehensive guide to the wonderful world of encased meat. Irish novelist Edna O’Brien discusses "The Little Red Chairs," her first novel in 10 years. Monique W. Morris, writer and co-founder of the National Black Women’s Justice Institute, looks at why African American girls are often the target of harassment in schools.