An important three-week-long meeting on the family is underway at the Vatican. Nearly 300 bishops—including nine Americans—are discussing challenges to modern family life. This is a follow-up to a contentious meeting last year, where sharp debates erupted over several questions, including whether to change church rules that ban communion for divorced Catholics who remarry. Pope Francis urged an open discussion on all issues. At the end of the meeting, the bishops will give him their recommendations.