A booming California coffee chain says it knows the key to one of Starbucks' biggest customer problems

Red Bay Coffee On May 29, Starbucks will hold a racial bias training in 800 US stores. The training is in response to an incident in April at a Philadelphia location, when a white store manager called the police on two black men after one asked to use the restroom. Racial bias is one of Starbucks' biggest PR headaches right now. On May 17, the chain came under fire again after a barista wrote a racial slur on a Latino customer's cup. A California coffee chain called Red Bay has curbed racial bia...