In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: The inner German border was never entirely sealed in the fashion of the border between the two Koreas and could be crossed in either direction throughout the Cold War. The post-war agreements on the governance of Berlin specified that the Western Allies were to have access to the city via defined air, road, rail and river corridors. This was mostly respected by the Soviets and East Germans, albeit with periodic interruptions and harassment of travellers. Even during the Berlin Blockade of 1948, supplies could be brought in by air – the famous Berlin Airlift. Before and after the blockade, Western civilian and military trains, road traffic and barges routinely passed through East Germany en route to Berlin.
The border could be crossed legally only through a limited number of air, road, rail and river routes. Foreigners were able to cross East German territory to or from West Berlin, Denmark, Sweden, Poland and Czechoslovakia. However, they had only limited and very tightly controlled access to the rest of East Germany and faced numerous restrictions on travel, accommodation and expenditure. Lengthy inspections caused long delays to traffic at the crossing points. Westerners found crossing the inner German border to be a somewhat disturbing experience; Jan Morris wrote:
Travelling from west to east through [the inner German border] was like entering a drab and disturbing dream, peopled by all the ogres of totalitarianism, a half-lit world of shabby resentments, where anything could be done to you, I used to feel, without anybody ever hearing of it, and your every step was dogged by watchful eyes and mechanisms.
What is the last name of the person who reportedly used to feel that your every step was dogged by watchful eyes and mechanisms?