It's possible that the presidential debates will be remembered mainly for trivia — Big Bird, binders and bayonets.

But Mitt Romney and President Obama did discuss issues of paramount importance, including taxes, entitlements and the role the U.S. should play in the Middle East.

Those issues — and above all else, the economy — dominated discussion throughout the debate season. That meant other important topics such as immigration were barely mentioned, while others never came up at all.

Update at 6 p.m. ET:

Our original headline on this post was "U.S. Pledges Exceed Pakistan's Spending On Its Own Flood Relief." As we reported, the Christian Science Monitor has looked into the details of a Congressional Research Service report and concluded that U.S. aid to Pakistan for flood relief exceeded that country's own spending.

But Ben Edwards, a spokesman at the U.S. Agency for International Development, tells us in an email that:

President Obama said during Monday night's debate that the U.S. Army has fewer horses and bayonets than in the past.

That's true. Although Army Special Forces were on horseback in Afghanistan when they helped defeat the Taliban in 2001, the Army's horses are now used only for ceremonial occasions.

As for bayonets? The last bayonet charge was during the Korean War in 1951.

The bayonet has somewhat gone the way of the horse cavalry, as far as the Army is concerned (although Marines still use bayonets in training).