Before revision: Nowadays a huge number of user-generated videos are uploaded to social media every second, capturing glimpses of events all over the world .
After revision: Nowadays a huge number of user-generated videos are uploaded to social media sites and the Internet from around the world. This material creates a visual record of the experiences of a significant percentage of humanity and can help illuminate how we live in the present moment. When properly analyzed, this video can also help analysts to reconstruct events of interest, including war crimes, human rights violations, and terrorist acts .