This blog post was coauthored with my research associate, Amelia M. Wolf.
For thirteen years, U.S. counterterrorism strategy has relied on an assumption that arose after 9/11: international terrorist attacks against the United States require a safe haven. Denying safe havens in Iraq and Afghanistan took nearly seven thousand American lives and will have an eventual estimated cost of $4 to $6 trillion. More recently, this assumption served as the rationale for launching an open-ended war against the Islamic State of Iraq and Syria (ISIS), which is nearing its sixth month of engagement. Read more »