They spread like wildfire, but where do they come from? This week, the world of memes. What goes viral online might seem random, but memes can be engineered and hacked to carry political messages.
Trending talks to Gianluca Stringhini, associate professor at University College London. His team has been looking into fringe internet groups – they’ve found that some far-right websites and message boards have a disproportionate impact on the memes that spread on mainstream social networks.

Presenter: Mike Wendling
Producer: Anisa Subedar
Studio Manager: Mike Wooley

Picture Caption: One example of the “Distracted Boyfriend” meme
Picture Credit: Getty/iStock/BBC