"Those faces. Differing ethnicities and ages. Single, couples, families. Determined, resigned, hopeful, fearful, joyful, insouciant, pensive, chirpy, devil-may-care, uncertain, angry. What do they have in common? In one sentence, they are about to leave" Piaras Mac Éinrí In 2010 David Monahan invited people emigrating from Dublin to participate in his Leaving Dublin project. Its…