Mehmet Ali Ağca paid his respects at the place where he attempted to murder the pope 33 years ago.
The Femen women's rights activist was freed after stealing a baby Jesus figurine on Christmas Day bare-breasted.
The Ukrainian woman was arrested on Friday and has been questioned by a judge
"Truly there are so many tears this Christmas," Pope Francis said in his annual address.
The Pope listed 15 "diseases" afflicting the highest-ranking members of the Catholic church.
Meetings in Canada and at the Vatican facilitated talks which led to a thaw in U.S.-Cuba relations, according to multiple reports.
"This is playing with life," Francis said. "Beware, because this is a sin against the creator."
God is not a "magician" with a "magic wand," says Pope Francis. "No duh," say Roman Catholics the world over.
A new report released by the Vatican Monday suggests a softening in tone—if not in policy—toward gays and gay marriage.