No one with any sense said that terrorists feared free societies. The Islamists for example hate free societies, but they know that a free society makes it easy for them to operate, so they do not fear the free societies. They will never fear free socieities until the free socieities grow enough spine and testicle to quit whimpering and whining, and get off their tulips to go kill the terrorists, and then have the good sense to actually stick to the job until it is finished. The problem is, for the most part, free socieities cater to the whims of their least common denominators.
Oh, and Pat is an idiot. The one thing the terrorists DO fear is the spread of a free society to THEIR breeding ground. It severely limits their prospects for conversion. Yes, any free society will always have its problems with those who would be terrorists, because that is the nature of humans, some succumb to it. Those who would be terrorists are not actually part of a free society, they just infest it. Saying that radical fundamentalists of any ilk are actually a part of a free society is like saying a tick with Lyme disease is part of its host. It is not part of the host, but merely a parasite bent on survival by destroying its host.