Chapter 8 discusses how to deal with alleged new terrorism and security threats posed by migration. Fears concerning terrorism and security seem to have significantly set back the prospects for migration justice recently. While there is some threat level, key issues include deciding what measures would be effective in combating it, while being commensurate with that threat level, and not ignoring the opportunity costs pursuing such policies might entail, especially ones that might better promote the goals of an inclusive society capable of resilience to such threats. The chapter also considers whether some risks can be further reduced without compromising our values, principles, and other important justice goals. There are significant concerns that arise about the measures we should take to protect against the perceived threat when they violate other demands of justice. For instance, excessive public expenditure in one domain when further outcome gains are insignificant and other important basic rights remain unaddressed, is relevant to assessing how well justice is achieved in particular societies.