In recent weeks, there has been a stream of negative propaganda around the topic of transgender athletes.
Transgender athletes have begun to break barriers at all levels of competitive sports, however their achievements have sparked a backlash of resentment among those who think that they're not competing on a level playing field.
First, it was tennis star Martina Navratilova, then Paula Radcliffe and Kelly Holmes. There's even a pressure group called Fair Play for Women that's trying to argue that people should only be allowed to play sport in the gender they were born into.
However, some people are fighting back against what they view as a 'transphobic' stance, including the activist, writer and former naval aviator Brynn Tannehill.