SpaceX is deepening its ties with U.S. intelligence and military agencies‚ winning at least one major classified contract and expanding a secretive company satellite program called Starshield for national-security customers. The Elon Musk-led company entered into a $1.8 billion classified contract with the U.S. government in 2021‚ according to company documents viewed by The Wall Street Journal. SpaceX said in the documents that funds from the contract were expected to become an important...