How Two Russian ‘Illegals’ Went Deep Undercover With Their Children The New York TimesPutin greeted children of 2 Russian spies in Spanish as they were unaware of their nationality: Kremlin FirstpostChildren returned to Russia had no idea parents were spies, Kremlin says The Washington PostRussian spies’ kids learned their nationality on flight to Moscow, and had no idea who Putin was, Kremlin reveals CBS News