Question: Pope Francis spoke to the US Congress this past Thursday morning in Washington DC. Throughout his speech Pope Francis lauded the values of what four Americans?
Answer: Abraham Lincoln, Martin Luther King Jr., Thomas Merton and Dorothy Day
For an article answering this question in more detail:
http://www.latimes.com/nation/la-na-pope-visit-four-americans-20150924-htmlstory.html
Full transcript of his speech to Congress:
https://www.washingtonpost.com/local/social-issues/transcript-pope-franciss-speech-to-congress/2015/09/24/6d7d7ac8-62bf-11e5-8e9e-dce8a2a2a679_story.html