The father of Al Jazeera correspondent Peter Greste has pleaded with Egyptians to realise that his son is innocent, as a date for the start of his trial was announced in Cairo.<br /><br />Greste, Mohammed Fahmy and Baher Mohammed will face their first hearing on February 20, charged with links to a "terrorist organisation" and "spreading false news". <br /><br />Greste's father, Juris, reiterated shortly before the announcement of the date that his son had done nothing wrong.