Complex sentence: For a period of time, he was in charge of physical security at the Agency's Langley headquarters; according to Russ Baker, then-Director of Central Intelligence Allen Dulles once introduced McCord to an Air Force colonel as "the best man we have".
Split into simpler sentences: For a period of time, he was in charge of physical security at the Agency's Langley headquarters. According to Russ Baker, then-Director of Central Intelligence Allen Dulles once introduced McCord to an Air Force colonel as "the best man we have".