The EU reopens its borders to 15 countries, the United States is not one of them. China passes its contentious Hong Kong security law, though details are scarce. How Japan is using a supercomputer to fight the virus.

Published: June 30, 2020, 7:11 p.m.

Julia Chatterley is live from New York. Here are the top business news stories today! Security scare - China passes its contentious Hong Kong security law, though details are scarce. Border ban! The EU prepares to open up - but not to Americans. Crunching Covid! How Japan is using a supercomputer to fight the virus. It\u2019s Tuesday, let\u2019s make a move.\nTo learn more about how CNN protects listener privacy, visit cnn.com/privacy\nLearn more about your ad choices. Visit megaphone.fm/adchoices