SEOUL -- Korean Air Lines Co., South Korea's flag carrier, and its four affiliate airlines will ban the in-flight use of power banks starting next week amid growing safety concerns, Hanjin Group said Friday.The top carrier and its four sister airlines -- Asiana Airlines, Jin Air, Air Busan and Air Seoul -- will ban travelers from charging smartphones and other electronic devices with power banks during flights starting Monday, the group said in a release.Hanjin Group said while passengers are allowed to bring power banks into the cabin, they must be kept in a separate pouch, stored within …READ FULL ARTICLE