Passengers on an Air China flight witnessed a lithium battery burst into flames in luggage that had been placed in an overhead bin on Saturday. The flight was on its way to Seoul but had to make an emergency landing in Shanghai when the incident happened, the New York Post reported. The plane had departed Hangzhou Xiaoshan International Airport just before 10:00 a.m. with 160 people onboard, the Post said, citing the airline and Chinese state media. VIDEO AT LINK.................... When the battery ignited, travelers began calling out for help to quell the flames. “Two flight attendants sprinted down the...