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If aeroplanes and passengers, as well as property and people on the ground are to be protected, potential perpetrators of aviation terrorism must be prevented from breaching security checkpoints and gaining access to ‘secure’ airport areas and to aircrafts. Given the interconnectedness of the air transportation system, a sufficiently high level of security must be provided throughout the entire system. In this chapter we examine terrorism issues relevant to airline and airport security internationally, a topic that has received much attention since 9/11. Understanding the key issues is crucial in evaluating the various methods of regulating and providing aviation safety and security. The purpose of this chapter is to review the key features of the Aviation and Transportation Security Act and the characteristics of the resulting security policy. Then we examine terrorism, previous terrorists' acts against aviation as well as current and future aviation threats. A summary of our major points completes the chapter.

During the 2020 election cycle, 2,276 super PACs spent over $2.1 billion in federal elections. This chapter argues that changes made to the US campaign finance system brought about by the Citizens United v. FEC (2010) and SpeechNow.org v. FEC (2010) cases have destabilized the American political system by fueling tensions between right-wing and left-wing populist factions and by contributing to congressional corruption. By moving away from the political corruption standard and toward the free speech standard in Citizens United, polarizing wealthy mega-donors and dark money sources have come to play a dominant role in congressional elections. These cases also helped to contribute to a two-tiered campaign finance regulatory structure that distinguishes between campaign contributions given directly to federal candidates and political money contributed to super PACs to support or oppose federal candidates. In the 2020 congressional elections, PACs and super PACS outspent both major party candidates combined in 35 House and Senate races. Super PACs are serving as “shadow parties” by targeting competitive races for the purpose of swaying partisan control of Congress. This study also shows that an exceedingly high percentage of super PAC money is spent on negative advertising that further divides rather than unifies the nation. This chapter also highlights the corrupting influence of congressional leadership PACs and examines how super PACs have enabled foreign and dark money sources to illegally influence congressional campaigns.