Complex sentence: Robert David Steele Vivas (born July 16,1952) is an American activist and former Central Intelligence Agency clandestine services case officer and is known for his promotion of open source intelligence (OSINT).
Split into simpler sentences: Robert David Steele Vivas (born July 16,1952) is an American activist and former Central Intelligence Agency clandestine services case officer. He is known for his promotion of open source intelligence (OSINT).