Past weighs on island nation as Britain grapples with EU dilemma

By Estelle Shirbon DOVER, England (Reuters) - Stand on top of the white cliffs of Dover on a clear day and you can see the French coast and the constant traffic of ferries crossing the Channel, binding Britain and Europe through the flow of people and goods. Seen through many British eyes, the famous cliffs conjure up a different vision, that of a fiercely independent island nation with a nearly thousand-year history of repelling would-be invaders from the continent just 33 km (21 miles) away. T