Amir Tahiri explains how differently McCain and Obama see the world. This issue alone would be grounds for choosing McCain over Obama. Think I'm exaggerating? Read the article for yourself and come to your own judgement. Here are the concluding paragraphs:
. . . McCain believes that America is at war; Obama doesn't. McCain believes the United States can win on the battlefield; Obama doesn't.
For Obama, the problem is one of effective law enforcement. His model is the way Clinton handled the first attack on World Trade Center in 1993. Obama says: "We are able to arrest those responsible, put them on trial." This means the United States reacting after being attacked.
McCain, however, doesn't fear the politically incorrect term "pre-emption" - hitting the enemy before he hits you.
When all is said and done, this election may well have only one big
issue: the existential threat that Islamist terrorism poses to
America's safety. Since McCain and Obama offer radically different
policies for facing that threat, American voters do have a real choice. [more . . .]