In September of 2002, the administration of President George W. Bush announced its policy of preemption. This policy is actually equivalent to a policy of preventive war. The principal difficulty with this policy is that it will incite fear in governments who would not otherwise attack us, and thereby incite them to hostile action. Thus the policy actually makes the world a more dangerous place.
"Preemption, Prevention and Predation: Why the Bush Strategy is Dangerous,"
Philosophic Exchange: Vol. 35
, Article 1.
Available at: http://digitalcommons.brockport.edu/phil_ex/vol35/iss1/1