Fact checking is irrelevant. What's necessary is education. Just like spell
check will not allow you to magically compose elegant prose, fact check is not
going to prevent people from being misled. Notice how both of these "problems"
have the same solution. In fact, fact check can be counter productive as people
now sprinkle their articles with irrelevant facts.
Education, as well us cognitive augmentation. Our brains are incapable of keeping up with the influx of information we're interacting with on a regular basis. We need to develop systems capable of information processing tailored to ones individual needs, intimately connected to our intellects.
Education is the solution to all social problems.