ANKARA (Reuters) – Social media firms operating in Turkey must open representative offices in the country, Finance Minister Mehmet Simsek said on Tuesday after Ankara held talks with Twitter aimed at resolving a dispute which led to a two-week ban on the site. Prime Minister Tayyip Erdogans government blocked Twitter temporarily in March, drawing international condemnation, after audio recordings purportedly showing corruption in his inner circle were leaked on their sites. YouTube remains blocked. …