Józef Światło
...that the defection of Polish secret police agent Józef Światło in 1953 shook the Polish United Workers' Party and led to the liberalization of Polish October?
...that the <a href="./Defection" id="mwB18" rel="mw:WikiLink" title="Defection">defection</a> of <a class="mw-redirect" href="./Ministry_of_Public_Security_of_Poland" id="mwB2A" rel="mw:WikiLink" title="Ministry of Public Security of Poland">Polish secret police agent</a> <b id="mwB2E"><a href="./Józef_Światło" id="mwB2I" rel="mw:WikiLink" title="Józef Światło">Józef Światło</a></b> in 1953 shook the <a href="./Polish_United_Workers'_Party" id="mwB2M" rel="mw:WikiLink" title="Polish United Workers' Party">Polish United Workers' Party</a> and led to the liberalization of <a href="./Polish_October" id="mwB2Q" rel="mw:WikiLink" title="Polish October">Polish October</a>?