Police officers monitor activity outside as protestors demonstrate inside a Center City Starbucks, where two black men were arrested, in Philadelphia, Pennsylvania, U.S., April 16, 2018. Starbucks will close 8,000 company-owned U.S. cafes for the afternoon on May 29 so 175,000 employees can undergo racial tolerance training in response to protests and calls for boycotts after the arrest of two black men waiting in a Philadelphia store. (Photo/Agencies)
