 In accordance with the Congress of Vienna of 1815 and the 1961 Vienna Convention on Diplomatic Relations, the ambassador and embassy staff are granted diplomatic immunity and personal safety while living abroad.Due to the advent of modern technologies, today's world is a much smaller place in relative terms.With this in mind, it is considered important that the nations of the world have at least a small staff living in foreign capitals in order to aid travelers and visitors from their home nation.