A BBC analyst Roger Hardy, currently on sabbatical in academia, has written a long, good article which ends with:
Even if Al-Qaida has been weakened, its ideological influence persists. The idea lives on.

In confronting that idea, American policy-makers face an inescapable dilemma, regardless of which administration is in power. Like it or not, the United States is seen as the new imperial power. Americans are reluctant imperialists. They want to be regarded as liberators rather than as oppressors, even when their actions belie their words. Islamism feeds on the perception that a once-powerful Muslim world has been brought low by the strength, technology, and culture of an all-conquering American-led West. This view may be exaggerated. It may be ruthlessly exploited by demagogues and bigots. It may produce an unhealthy culture of victim-hood. But it persists, and without a sea-change in Western attitudes and Western policy it will retain enough truth to be persuasive. Changing the perception requires changing the reality.
Link:http://www.opendemocracy.net/roger-h...t-war-of-ideas

I am sure some of these points have been made elsewhere, although on a quick skim of this group of threads there is nothing similar.