Dublin airport could be putting an end to its annual blessing of planes. A tradition that dates back to 1947, it was initially limited to planes from Ireland's flag carrier Aer Lingus (which are also named after Irish saints) as a way to reassure anxious flyers. Since, it has been extended to all planes and made ecumenical. The blessing is usually carried out on Christmas day as it is the only time of the year when the airport shuts down.