September 13, 2006 12:34PM 

# New at Cato Unbound: Clark Ervin Replies to John Mueller on Terrorism 

By [Will Wilkinson](https://www.cato.org/people/will-wilkinson) 

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In today’s installment of *Cato Unbound*, Clark Kent Ervin, former Inspector General of the Department of Homeland Security and author of *Open Target: Where America is Vulnerable to Attack*, [strongly disagrees](http://www.cato-unbound.org/2006/09/12/clark-kent-ervin/id-rather-err-on-the-side-of-the-believers/) with John Mueller’s provocative lead essay, “[Some Reflections on What, if Anything, “Are We Safer” Might Mean](http://www.cato-unbound.org/2006/09/11/john-mueller/are-we-safer/),” in this month’s issue devoted to “9/11 Five Years After: Reassessing Homeland Security and the Terrorist Threat.”

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