In a written testimony to the United States of America (USA) Congress, Facebook Chief Executive Officer (CEO), Mark Zukerberg admitted that the social networking giant did not do enough to prevent misuse of data and apologised for it. “We didn’t take a broad enough view of our responsibility, and that was a big mistake,” his testimony continued. “It was my mistake, and I’m sorry. I started Facebook, I run it, and I’m responsible for what happens here," he said. Zukerberg met the US lawmakers yesterday (Moday) and began testifying today (Tuesday).