British retailer Marks & Spencer (M&S) (MKS.L) intends to open 20 new stores creating 3,400 jobs throughout Britain, The Times reported on Monday.The newspaper said that the 138-year-old clothing and food group would open eight “full-line” stores in shopping centers such as the Bullring, Birmingham, and the Trafford Centre, Manchester, as well as retail parks and high streets.It also will...