Security measures take up more and more space in our cities. In parallel, the security industry is growing. To understand these developments, we must take a step back and unfold the rationales and theories that lie behind such security measures and their materiality, specifically in the security industry. This article uses the case of the newly developed counterterrorism industry in Copenhagen to unpack some of the general dynamics that enable growth in the security industry and an increase in security measures. Building on ethnographic fieldwork among security companies, architecture firms, the Municipality of Copenhagen, the national security service, and others, this article shows how theories about counterterrorism develop in an interplay between this diverse group of security actors. The article zooms in on a security company and an architecture firm, and their divergent approaches to counterterrorism measures, and shows how both develop in conflict with local city values and security-skeptical actors. The two companies work hard to establish and promote theories not only about counterterrorism but also about what is best for the city and its citizens, which help legitimize their work in Copenhagen and shape public opinion on counterterrorism, and, ultimately, the materiality of the city.

中文翻译：

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混凝土砌块、护柱和哈哈墙：安全行业的基本原理如何塑造我们的城市

安全措施在我们的城市中占据了越来越多的空间。与此同时，安防行业也在增长。为了理解这些发展，我们必须退后一步，揭示这些安全措施及其重要性背后的基本原理和理论，特别是在安全行业。本文以哥本哈根新发展的反恐行业为例，剖析一些促进安全行业增长和增加安全措施的一般动态。本文以安全公司、建筑公司、哥本哈根市政府、国家安全局和其他机构之间的民族志实地调查为基础，展示了反恐理论是如何在这些不同的安全参与者群体之间的相互作用中发展起来的。这篇文章重点介绍了一家安保公司和一家建筑公司，以及他们对反恐措施的不同方法，并展示了两者如何在与当地城市价值观和对安全持怀疑态度的行为者的冲突中发展。两家公司不仅致力于建立和推广关于反恐的理论，还致力于建立和推广什么对城市及其公民最有利的理论，这有助于使他们在哥本哈根的工作合法化，并塑造公众对反恐的看法，并最终塑造城市的物质性.