Thailand’s former Prime Minister Thaksin Shinawatra will be indicted on charges of insulting the monarchy, the country’s attorney-general has said.The controversial political leader, who returned to Thailand last year after 15 years in exile, is being charged over an interview he gave to a Korean newspaper nine years ago. He is the most high-profile figure to face charges under Thailand’s notorious lese majeste law, which has been used extensively against political dissidents. Hundreds of people have been charged in the last four years alone. A huge figure in Thai politics, Mr Thaksin’s…