What should you do if you witness a racist or Islamophobic tirade?

[ahlam1399]

It's an instinct that comes naturally to good Samaritans: When you see one stranger attacking a**ther with racist or religious epithets, you try to protect the victim.

أكثر... (http://www.cnn.com/2017/05/28/us/racist-and-religious-tirades-what-to-do/index.html)