How should the U.S. or any country, for that matter, defend itself against terrorists? At the White House July 28, Pakistani Prime Minister Yousuf Raza Gilani said, “This is our own war; this is a war which is against Pakistan.” Speaking about fighting terrorists, Gilani said, “We can do it ourselves.”

Both U.S. presidential candidates talk tough about terrorism on the campaign trail and promise they will pursue terrorist threats wherever they exist. Presumed Republican nominee John McCain told the World Affairs Council in March, “We must also have an aggressive strategy of confronting and rooting out the terrorists wherever they seek to operate, and deny them bases in failed or failing states.” In July, presumed Democratic presidential nominee Barack Obama said, “It’s time for sustained and aggressive action - to take the offense against new dangers abroad, while shoring up our defenses at home.”

At the same time, both candidates say they would work with allies and seek diplomatic solutions before considering other actions. Should the next leader of the United States be willing to act unilaterally to halt a terrorist threat?