Stock Photo - Protestant theologian Martin Niemoeller (l) in the historic Paulskirche in Frankfurt am Main on 25 June 1963 among the guests during the visit of US president John F. Kennedy. - Frankfurt/Hessen/Germany

Stock Photo: Protestant theologian Martin Niemoeller (l) in the historic Paulskirche in Frankfurt am Main on 25 June 1963 among the guests during the visit of US president.

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