As Novo Nordisk and Eli Lilly expand sales of their popular diabetes and weight-loss drugs, cheaper copies of their patented remedies are winning approval from some regulators overseas, posing a threat to the pharma giants' prices and market share.

Starbucks Workers United announced baristas will strike starting Friday in three key markets — Seattle, Los Angeles and Chicago.

The walkouts in Los Angeles, Chicago and Seattle come after talks between the company and the workers’ union failed to produce an agreement on raises.