Pete Lunn: Ebb and flow of migration has left tide marks on our country
MIGRATION is often said to occur in "waves". The description is apt. The flow of people across borders is constant, but not steady.
It can be hard to predict or control. In stormy times, the effects can be spectacular and exciting, leaving a lasting impact.
As a small country with a turbulent economic history, Ireland has seen large waves of migration -- in and out, in good times and bad.