Biden close to blocking Nippon Steel deal to buy U.S. Steel, sources say ReutersBiden preparing to block Nippon Steel purchase of U.S. Steel The Washington PostNippon Steel Left Hunting Next Step as US Takeover Flounders BloombergGovernments must not intervene in deals arbitrarily, Japan PM hopeful says of U.S. Steel takeover ReutersU.S. Steel says it could leave Pittsburgh if Nippon deal falls through as Biden plans to block takeover Pittsburgh Post-Gazette