English in a Minute: Red Flag – VOA Learning English (Oct 08, 2016)

https://av.voanews.com/Videoroot/Pangeavideo/2016/06/8/8a/8a0d0198-975f-49d0-acbd-405dea9e1ddf.mp4?_=1

This expression sounds easy enough, but it is actually a warning. Find out how to use this phrase, and learn about its origins, in this week’s English in a Minute!

This video was originally published on the www.learningenglish.voanews.com  and reproduced here with permission.

Courtesy: Voice of America