Isolationism as a foreign policy is more difficult to achieve in the twentieth century than in prior times mainly because

a. competition with other nations.

1) the andrew carniage's purchase and renovation of skibo castle have been very good and auspicious for the local people of dornoch firth, scotland because this is a turistic attraction for many people who would want to know the castle, the local people would take advantage about this.

2) yes, it could.