Delta hit with backlash over tweet about flight attendants wearing Palestinian flag pins, issues groveling apology New York Post Delta removes an employee, changes its uniform policy after backlash over social media post perceived to be anti-Palestinian CNNWhy did Delta Air Lines tweet that the Palestinian flag is ‘terrifying’? The GuardianDelta apologizes for post disparaging attendants’ Palestinian flag pins The Washington PostDelta apologizes after reacting to post calling employees’ Palestinian flag pins “Hamas badges” CBS News