OSINT is an often overlooked and underutilized form of intelligence. An understanding for what the open-source has to offer is best gained through defining OSINT. The following image from CIA.gov puts it best:
Open-source has an abundance of data to be applied in creative ways to bolster international security, promote economic enhancements, and provide early warning for a wide variety of disasters. Spending some time going over the article in its entirety would be worth while: https://www.cia.gov/news-information/featured-story-archive/2010-featured-story-archive/open-source-intelligence.html
Making certain you are knowledgeable is imperative in a democracy. Check back for updates and additions to this section, and stay frosty.