President Joe Biden said Elon Musk's relationships with other countries are "worthy of being looked at."  that it's worth being looked at." Last month, people familiar with the matter said the Biden administration was discussing whether the US should subject some of Musk's ventures to national security reviews, including his deal for Twitter Inc. and SpaceX's Starlink satellite network, according to people familiar with the matter. Biden spoke at a news conference. (Excerpt) Follow Bloomberg for business news & analysis, up-to-the-minute market data, features, profiles and more: http://www.bloomberg.com/ Connect with us on... Twitter: https://twitter.com/business Facebook: https://www.facebook.com/bloombergbusiness/ Instagram: https://www.instagram.com/quicktake/?hl=en