And yet 150 years ago, 600,000 americans were about to die. About 1 out of every 50 americans WAS GOING TO DIE from a war.
But that wasn't yet known at the time. It is true that those that forget the past are condemned to repeat it. But if you take that same statement, and put it into the context of our military always being prepared to fight the previous war they were in, then you can see the fallacy of that.
There are weapons, and ways, now, in which we can lose many more americans than we did even in the Civil War. To put an example; Even though it happened in Europe, in World war one there were over a million casualties on both sides of the Battle of the Somme alone. At this time, the Technological advances of the combatants was markedly superior to that of our Civil War; Not only Modern bolt-action cartridge firing rifles, but also Machineguns, Barbed-wire, poison gas, Rapid-fire artillery firing High-Explosive and fragmentation shell, Aircraft, Tanks....And all of this was only 50-55 years after our Civil war. WWII was on average per year, more costly in Human life than either WWII or our Civil War combined.
Now, imagine if Jefferson Davis and Lincoln (or whomever would take office after him in this case) were to be able to preserve peace in America, with the Union and Confederacy living side-by-side for 2 or 3 decades' longer than they did, and THEN waging war with each other, with the weapons' of a future time? Yes, in this case, things definetely could, and would have, been "worse".
This can be applied to 9/11, as well. Up until the WTC disaster, the single worst terrorist attack on U.S. soil was...Oklahoma City, I believe, the bombing of the federal building. If you take 9/11 and compare the total cost...Human, dollar, economic...9/11 was in a completely whole new tier. Correct me if I'm wrong, but I believe I've read that 9/11 cost more human lives' than even the Attack on Pearl Harbor on Dec. 7th, 1941. Definetely, definetely, worse.