In its campaign to force the British out of Gibraltar, Spain has waged a war of pinpricks. First, it refused to grant new permits for Spanish laborers to commute to work on the Rock, thus denying the colony necessary manpower. Next it slowed down auto traffic onto the Rock by insisting on interminable inspections at La Linea, the
Spanish checkpoint on the border. Last week Spain dealt the colony the cruelest jab yet. At the border, Spanish police swung two heavy iron gates across the road and turned a key in a rusty...