Pope lands in Singapore, final stop on grand Asia-Pacific tour

Pope Francis landed in Singapore on Wednesday, the last stop of a four-nation Asia-Pacific trip aimed at boosting the Catholic Church's standing in the world's most populous region.

In recent years, the ailing pope has undergone hernia surgery and has been plagued by respiratory issues.  But throughout the trip, he has carried out dozens of public engagements, energized congregations through impromptu call-and-response and repeatedly sat for hours in the tropical heat.