South Korean President Lee Jae Myung said on Tuesday security and safety must be a top priority for a concert by K-pop band BTS on Saturday in Seoul, including readiness for any possible acts of “terror”, according to a live TV broadcast of a cabinet meeting.The free comeback concert for the boy band in central Seoul is expected to draw up to 260,000 people, the Ministry of the Interior and Safety said last Wednesday, making it one of the largest public gatherings in the area...