Harbaugh took his team to Europe. He plans to have a yearly spring trip abroad. I think that likely appeals to some. ND playing a game in Ireland every once in a while isn't a big deal. Lou Holtz took ND to Dublin for a game. Other teams have played games in Ireland. Penn State did a few years back. Ireland seems like a natural fit for ND. Other teams have played elsewhere overseas. Stanford played in Australia a couple of years ago. So did Cal. Teams have played in Japan. As for playing Navy in San Diego . . . who cares if ND plays them in Maryland or California? It's a road game either way.