Pope Francis received a rapturous welcome to Washington on Wednesday but did not shy away from controversy, addressing church sex abuse and urging action on immigration and climate change.
Francis was asked if he approved of U.S. strikes against Islamic State insurgents who have recently forced Christians and other minorities to flee their homes in Iraq.
Francis, met by festive crowds, spoke several times during his visit to South Korea about inequality, which has been a theme of his papacy since being elected in March 2013.
Military support was needed "to stop the wolf getting to the flock to kill, eat, destroy", Rabban al-Qas, the Chaldean bishop of Amadiyah, told Vatican radio.
The pope was quoted as saying that, while most paedophilia took place in family situations, "even we have this leprosy in our house".
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