US blocks Nippon Steel's bid to purchase US Steel 

FILE - An employee enters the human resources and educational building for Nippon Steel at their East Nippon Works Kashima Area facility in Kashima, Japan, Dec. 6, 2024. President Biden on Friday followed through on his pledge to block Nippon Steel's on bid for U.S. Steel.

U.S. President Joe Biden on Friday followed through on his pledge to block Nippon Steel's $14.9 billion bid for U.S. Steel, citing concerns the deal could hurt national security.