War can be justified when it is the best policy option / Richard N. Haass -- War can rarely be justified / Robert Higgs -- Preventive war can be justified by adhering to strict international legal standards / Abraham D. Sofaer -- Preventive war can be valid even if it cannot be justified / Peter Hetherington -- Preventive war is unjustifiable / Neta C. Crawford -- U.S. wars in Iraq and Afghanistan are unjust / Ryan King -- The United States can and should seek to justify its war in Afghanistan / Susan Brooks Thistlethwaite and Brian Katulis -- Water scarcity may be a cause of future wars / Nelson E. Hernandez -- The threat of future water wars is exaggerated / Thomas Lawfield -- Disputes over energy supplies may be the cause of future wars / Michael T. Klare -- Energy interdependence encourages nations to work together and avoid serious energy disruptions / Daniel Yergin -- Religious fundamentalism will provide justification for future wars / Frank Schaeffer -- Most wars have been fought for secular, not religious, reasons / Aklan Lurie -- America is winning the war on terror / Juan Zarate -- America is losing the war on terror / Justin Raimondo -- Al-Qaeda has failed and its threat defeated / William McCants and William Rosenau -- Al-Qaeda has not been defeated / Seth G. Jones -- America must end the war on terrorism to atone for its misdeeds / Michael Lerner -- America must end the war on terror to reestablish its regard for law / Karen J. Greenberg -- America must reduce its nuclear arsenal and guarantee limits on the use of nuclear force / US Department of Defense -- America should not reduce its nuclear arsenal / G. Philip Hughes -- America is justified in utilizing torture to pursue terrorists / Charles Krauthammer -- Torture is never justified / Jamie Meyerfeld -- Torture reveals America's loss of principles in the Iraq War / Edward Tick -- America should use its surveillance tools to preserve national security / Jena Baker McNeill -- National security tools should not infringe on civil liberties / American Civil Liberties Union.