The voice of Pakistan’s former premier Imran Khan reverberating from the confines of his prison cell as he delivered a rallying cry to supporters in a four-minute video took many by surprise. There was widespread confusion until the truth emerged, that artificial intelligence (AI) had been used to create a deep fake, a video suggesting Khan was leading his party’s campaign from behind bars made with the aid of a voice clone. Ousted in a no-confidence vote in 2022, Khan is not on the ballot in this week’s election, but remains a formidable political figure in the country, thanks to his anti-est…