 Complete the following phrase:  Eliot Higgins interest in OSINT began in 2011, when he was arguing in comments of The Guardian and found out that its possible to verify videos with satellite imagery. In March 2012, he started a blog under the pseudonym Brown Moses, named after a song by Frank Zappa, through which he published his research into video footage of the Syrian Civil War. He looked at hundreds of short clips on the Internet, localised them, and examined details of the weapons used. As a result, Higgins demonstrated that the Syrian regime was using cluster munitions and chemical weapons. In 2013, Higgins linked the chemical attack in Ghouta the 