'We're giving Horizon compensation claims kick up the backside' / Post Office campaigner Alan Bates tells PM 'clock is ticking' on compensation for Horizon victims / Post Office staff implicated in Horizon scandal may still be 'operating at heart' of business / Sienna Miller Is the Reason to Watch Horizon / Steps are needed to prevent another scandal like Horizon / Horizon convictions continued after Crown Office meeting / Alan Bates calls for protection of legal funding that helped bring Horizon scandal to court / Former Post Office complaints handler defends knowledge of Horizon failings / Horizon victims law and tourist 'mauled by bear' / Victim calls for lawyer removal from Horizon scheme