Chinese victims who were rescued from illegal call centre scammer operations in Myanmar boarding a China Southern Airlines aircraft during a repatriation exercise at Mae Sot airport on Feb 20. PHOTO: EPA-EFE MAE SOT, Thailand – There are usually no international flights out of the airport in Mae Sot, a town on Thailand’s border with Myanmar. But in recent days, hundreds of people here boarded direct flights back home to China. They had been rescued from Myanmar, where they were ensnared in a 21st-century scourge – online scam mills that have used forced labour to bilk tens of billions of...