FILE - This file photo taken in Warsaw, Poland on Feb. 22 , 2016 shows part of an 1970 agreement to collaborate with the communist-era secret police signed "Lech Walesa" and code name "Bolek." Experts of a state history institute said Tuesday, Jan. 31, 2017, in Warsaw, Poland, that handwriting analysis of this and other documents confirms that Lech Walesa, the later founder of the pro-democracy Solidarity movement, collaborated with the Polish communist-era secret police for money from 1970 to 1976. (AP Photo/Czarek Sokolowski, file)
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