If we sealed ourselves up and disengaged from the world, Islamic fascism would win. The nukes would be on our borders, and our enemy would be within.
Be on guard, but have confidence. This latest spike of Islamic aggression is out of desperation. They know their civilization is stagnating at best and ours is winning.
HUH? I didn't say "disengage from the world". What I suggested is that we DON'T LET THE BAD GUYS INTO THE COUNTRY IN THE FIRST PLACE".
It is not "shortsighted" at all, and a pretty simple premise: if you export the bad guys (round them up, like we did the Germans in WWII that were sent here by Hitler to blow up US factories during the war), and have a preventative mechanism in place to keep them from coming back (good border control), they can't hit you. Or, at the very least, you make it VERY hard to attack the US from within.
As it stands today, ANY terrorist could walk ANY weapon into the US and detonate it at will. If we keep them OFF US Soil in the first place, or make it a LOT harder, this is a whole lot less likely to happen.
We are "sitting ducks" as it stands now, and lack the societal awareness/intelligence and political will to do a darn thing about it.