Summary: It is often said that truth is the first casualty in any war. Propaganda, disinformation and outright lies have always been dependable tactics to win hearts and minds. But in a world more connected than ever by technology, it is more possible for anyone to root out information. It's called open source intelligence, and as Miles O'Brien reports, some are using it to lift the fog of war in Ukraine. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders
