President Joe Biden said Elon Musk's ties with foreign countries are "worth being looked at." He added that he wasn't suggesting Musk is doing "anything inappropriate." Advertisement President Joe Biden said on Wednesday evening that Elon Musk's relationships with foreign countries are "worthy of being looked at" in light of the billionaire's purchase of Twitter. The president had been asked if he felt Musk and his Twitter acquisition posed a "threat to US national security," given Musk's business relationships with foreign governments such as Saudi Arabia's. Biden chuckled and paused in thought before answering. "I think that Elon Musk's cooperation...