9/11 made a good portion of America feel >unsafe<. It, unfortunately, took the hayseed from their hair and forced them to realize that we are part of the >world<...and the world is not cast in the form of "Main Street USA".
And the part that many don't seem to understand...politicians overall will respond to their constituents. Right now >NOBODY< will get voted from office for the security measures being taken by the government. Why? "We the people" (in the Constitutional sense) SUPPORT them...by a large margin. They supported the removal of Hussein. They support the airport security measures. They support expanded police authority for investigations, they support governmental sharing of data...all of it.
And, when the random crashing of SUVs showed a pattern...it did get governmental and public awareness...and the Firestone lawsuit and hearings dealt with far fewer deaths than 9/11.
This country >has< changed since 9/11. And 2 years in...we can see the over-reaction in certain areas.
I agree with you that not >everything< should be blamed on 9/11...but the current government is responding largely to those concerns...to the current detriment of the economy and local affairs. It will cost them the election (if the Dems can field a candidate...that is)