If you've come across fas.org and are wondering whether it's legitimate, the short answer is yes: this is the Federation of American Scientists, a respected nonprofit that has been working on science and security since 1945. The domain itself has been active since 1995, and the site's security setup β modern encryption, privacy protections, and clean blacklist records β is what you'd expect from a serious organization that takes its online presence seriously. Fas.org reviews online are scarce, mainly because it's a think tank rather than a store or service, but the signals that matter are all positive. The organization publishes its contact details, an About page, and privacy and terms pages, which is more than most nonprofits bother with. If you were checking 'is fas.org a scam?' because you came across it in a search, you can set that concern aside. This is a real, long-standing group that uses its website to share research, advocate for science-based policy, and accept donations. The only minor oddity is that the Wayback Machine doesn't show an archive of it, but that doesn't change the fact that the site and the nonprofit behind it are well known and transparent.