According to Usaspending.gov between FY2008 and FY2017 the FAA awarded 78,000 contracts worth over $36 billion to maintain 
telecommunications and data processing,  provide training,  etc. Most federal agencies depend heavily on government contractors for their telecommunications and information technology infrastructure needs and maintenance. Many use high tech equipment made in China and other foreign countries. So in a way much of the work of the federal government has been "privitized" or depends on private contractors to function properly.