Quite simply because extremists from other countries have come to the US and have attacked us. We are defending ourselves "against those" who would
kill anyone that doesn't belong in their group. The extremists have made it clear, they will attack not only the US, but anyone and everyone, so we
have to root them out. That's the only solution I see in the problem of terrorism.
If radicals/extremists and some moderates that might think on joining the radicals see that we are for real and will root every one of them, they
might think twice before doing any other attacks. The best defense is a "strong offense."
Are there other reasons why we are in Iraq? of course, Iraq is not the only country that has extremists and have shown they will kill people in mass
attacks. The war on terrorism doesn't end in Iraq.



