SIDNEY (Kyodo) — Australian Prime Minister Scott Morrison has been unable to access his account on the Chinese social media platform WeChat since July, a government source said Tuesday, as local politicians accuse Beijing of political interference. Tencent Holdings Ltd., the Chinese tech giant that owns WeChat, in an official comment the same day denied claims that the account had been hijacked, and said the issue appears to be merely a dispute over account ownership with a little-known Chinese company that now controls it. James Paterson, a ruling Liberal Party senator who chairs the Parliamentary Joint Committee on Intelligence and…