As part of a collaboration between the Qatar Computing Research Institute (QCRI) and MIT, I was working on question answering in community forums, where the goal was to detect which answers in the forum were good, in the sense of trying to answer the question directly, as opposed to giving indirectly related information, discussing other topics, or talking to other users. We developed a strong system, which we deployed for use in production in a local forum, Qatar Living, where it is operational to date, but we soon realized that not all good answers were factually true. This got me interested in the factuality of user-generated content. Soon, along came the 2016 US Presidential election, and fake news and factuality became a global concern. Thus, I started the Tanbih mega-project, which we are developing at QCRI in collaboration with MIT, and other partners. The aim of the project is to help fight the fake news, propaganda, and media bias by making users aware of what they are reading, thus promoting media literacy and critical thinking. At Checkstep, we’re currently building AI-first tools to tackle hate speech, spam and misinformation.