UPS, Teamsters Struggle in Contract Talks; Moderna Deal to Make Vaccines in China

Parcel delivery firm UPS and the Teamsters Union on Wednesday accused each other of walking away from the negotiations, with each side blaming the other for walking away from talks. This is delaying contract talks that cover roughly 340,000 U.S. drivers, package handlers, and loaders at UPS. Vaccine maker Moderna said on Wednesday it had signed a memorandum for opportunities to research, develop, and manufacture mRNA medicines in China. Will Meta's new app pose a threat to Elon Musk's Twitter? NTD speaks to a social media expert.