Communist secret police spied on Pope John Paul II

He was put under surveillance from as early as 1946, with the regime’s attentions stepping up a level when the then Karol Wojtyla became auxiliary bishop of Krakow and later a cardinal, a conference on the late pontiff, held in Cork, heard.
Marek Lasota of the Institute of National Remembrance in Krakow said the Communist secret police identified Pope John Paul as a problematic ideological opponent to their regime in the early days of his priesthood.