Hardened/open border paradox | Government homework help

Is it cost effective from a risk analysis perspective to spend billions of dollars to stop a “hand-full of people” who are bound to terrorize the United States? What is the “Hardened Border Paradox? What is the “Open Border Paradox? How can both be overcome? Compare and contrast the two.

The post needs to be at least 400 words in APA format. Please use the link below for resources/sources and refer to Week 3.