Answer - it does not decrease terrorism, it increases it, which any fool could see. Which is exactly what is happening. AQ and it's offshoots were small and scattered and now have been enlarged, energized and unified throughout the Muslim world because of the catastrophic miscalculation of the Bush Administration - that invading Iraq was a good idea. These fools have done more to advance terrorism and its cause than it's even possible to calculate, much less rectify.
As to the most idiotic assertion - "we are fighting them there so we don't have to fight them here" - why is it an advantage to be an occupying army fighting an enemy on their home turf? Have not almost all occupations throughout modern history been unsuccessful unless they are the result of massive overwhelming strength and cruelty and disregard for civilian deaths. And then they are usually doomed to failure anyway in the long term. Didn't the British Empire pretty much settle the hash on that issue? And the French Occupations? And yet, it seems as though some on the right are moving more in this direction. I heard that wingnut Melanie Morgan advocate on Hardball last night that we just needed to stop being concerned with collateral damage . And then there's this general in this thread saying pretty much the same thing.
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=364x2447280Again, just another recipe for greater longterm disaster and chaos that will sow the seeds of hatred for generations to come.
We never entered this war in the first place as a war of expansion of democracy and liberation. It was a putative defensive war fought on false pretenses that Saddam had WMD's and supposedly had some ties to AQ. Someone, somewhere needs to acknowledge this. WE WERE WRONG TO INVADE IRAQ. Wrong. Wrong as in being an error of judgement and wrong as in being morally wrong. Just like George Bush, the American people and almost all their politicians are unable to recognize and apologize and atone for and correct as much as they can a horrible, horrible blunder. The people who are responsible need to be put out of office. Saying all that, I have no earthly idea how to clean up the mess that they have made in that country.