Wednesday’s final debate is designed to focus entirely on domestic issues. Yet we live in a globalized world, and from personal security to financial security, critical international concerns are also part of the domestic agenda. Some issues that deserve an airing have not yet come up – doing right by our veterans, protecting our homeland, maintaining our constitutional values while keeping our homeland secure. Others such as energy security and the financial crisis, which are inextricably linked to our foreign policy, will surely be discussed again.