Delta changes uniform policy following flap over flight attendants with Palestinian pins USA TODAYDelta apologizes after reacting to post calling employees’ Palestinian flag pins “Hamas badges” CBS NewsUS Airline Apologises Amid Row Over Cabin Crew Wearing Palestine Flag Pin NDTVWhy did Delta Air Lines tweet that the Palestinian flag is ‘terrifying’? The GuardianDelta apologizes for post disparaging attendants’ Palestinian flag pins The Washington Post