Secretary of State Marco Rubio said on Thursday he had "zero doubt" that China has a contingency plan to shut down the Panama Canal in the event of a conflict with the U.S. and that Washington intends to address what it sees as a national security threat.

Secretary of State Marco Rubio says President Donald Trump’s desire to acquire Greenland and retake control of the Panama Canal is driven by legitimate national security interests stemming from growing concerns about Chinese activity in the Arctic and in Latin America.

The start-up had become a key player in the “Chinese Large-Model Technology Avengers Team” that would counter US AI dominance, said another. China’s delight, however, spelled pain for several giant US technology companies as investors questioned whether DeepSeek’s breakthrough undermined the case for their colossal spending on AI infrastructure.

Top White House advisers this week expressed alarm that China's DeepSeek may have benefited from a method that allegedly piggybacks off the advances of U.S. rivals called "distillation." The technique,

SINGAPORE—The unexpected success of Chinese AI startup DeepSeek has revealed cracks in U.S. efforts to contain China’s technology ambitions, challenging both Washington and Silicon Valley to rethink how best to preserve American supremacy.