Elon Musk's SpaceX is deepening its ties with U.S. intelligence and military agencies through classified contracts ranging in the billions of dollars. SpaceX has long been a major partner for the U.S. in launching military satellites‚ but documents reviewed by the Wall Street Journal show the company entered into a massive $1.8 billion classified contract with the U.S. government in 2021. SpaceX will not publicly clarify the government agency behind the contract. SpaceX has also developed...