SpaceX is building hundreds of spy satellites under a classified contract with a U.S. intelligence agency, demonstrating deepening ties between billionaire entrepreneur Elon Musk's space company and national security agencies.

This latest venture illustrates that despite the highly critical language with which Musk assails Biden and his administration, he is more than content to do business with them. 

The satellites are being built by SpaceX's Starshield division under a $1.8 billion contract signed in 2021 with the National Reconnaissance Office (NRO), an intelligence agency that directs spy satellites.