Don't Let Go: Those Balloons Can Kill

Earlier this month, Lotte Corporationlaunched thousands of balloons [http://news.mt.co.kr/mtview.php?no=2017040317234832733] into the air to mark the opening of its World Tower in Seoul. It was a beautiful sight, and a typical practice at such occasions. Balloons are released into the sky all the time: at weddings [https://www.youtube.com/watch?v=uCTKx4eoq4w], ceremonies, parties; even at the nationwide candlelit rallies [https://www.youtube.com/watch?v=HZucmiIuikM] that called for former presi