Seven planes will leave Dublin airport on Saturday for French shrine.
Pontiff condemns the use of chemical weapons in Syria.
Church leaders oppose intervention as British Govt motion on military action defeated.
8.4m people in urgent need of humanitarian aid according to Trócaire.
New figures show Colombia is the most dangerous country for the Church’s clergy.
Refugee crisis similar in scale to Rwandan crisis of 1994.
Mairead Corrigan Maguire discusses conflict with Vatican officials.