And did that invasion change anything? Were the Taliban or al Qaeda eliminated by that invasion? Did you notice that the exact same justification was used to attack neighboring Iraq?
Sorry, but I happen to have lived through that year and the years following, and I know that given an America that lived up to its own hype, an invasion was easily avoidable. It's just that such an America doesn't exist. Too bad for us all.
Even if the invasion was required, nothing required us to occupy the place for a decade and counting, turning it into a perpetual war.
Hook up with the Northern Alliance, bomb the hell out of their enemies, set them up, leave. They can't hold on to power? Oh well. The point has been made. The country returns to dictatorship and chaos? Well, that happened anyway.
You may recall the last time something like that happened to Afghanistan, it led to the whole civil war that resulted in the rise of the Taliban and AQ in the first place.
Yes "adverse" consequences always occur in countries we don't understand and don't particularly care about, no matter what awful things we do to them. (Next door in Iran, how did that Mosaddegh coup turn out?) The only real argument is over how much wealth will be transferred to our military-industrial complex, and how many Senators will get to go on another junket as a result? On those questions, I vote "less" and "fewer".
Sorry, but I happen to have lived through that year and the years following, and I know that given an America that lived up to its own hype, an invasion was easily avoidable. It's just that such an America doesn't exist. Too bad for us all.