Question: What American journalist was married to another American journalist who is one of only three Americans buried in the Kremlin Wall Necropolis?  
Sentence (from "Kremlin Wall Necropolis"): The eastern segment of the Kremlin wall, and Red Square behind it, emerged on its present site in the 15th century, during the reign of Ivan III; the wall and the square were separated with a wide defensive moat filled with water diverted from the Neglinnaya River.
Relevant evidence: No