YouTube will "fight online terror". It will find and delete dangerous videos. YouTube will do four things about this problem. One thing is to delete videos that help terrorists. YouTube will also delete videos that could get people to become terrorists. Finally, YouTube will show "anti-terrorism" adverts.

There are many problems with these four things. It is a big job to look at so many videos. Over one hour of video is uploaded on YouTube every second, or one hundred years' of video every 10 days. Terrorists could use news video in the wrong way. YouTube will use software to find videos that help terrorists.