The atrocities committed against Blacks in America has been well documented, and specific laws have been passed to prevent even minor infractions. Thankfully, as a country we have addressed these issues. We'll never be able to stop predudice feelings in individuals, but we can prevent groups from acting on them.
Likewise, the Catholic Church is looking to address their past cover-ups, and are taking measures to prevent future occurances.
I've yet to hear of any Muslim group doing the same. In fact, I've heard more appologies from Americans regarding the Muslim Terrorists than I have from the Muslim leaders themselves.
Bringing to light the reality of the threats is not counter-productive, as some suggest. In fact, it is a good start in addressing the problem. We are not fighting individuals. We are dealing with large groups of rogue "freedom fighters" who value their own life less than we do.
Turning a blind eye and stating that "all groups have done bad things" is a very dangerous position to take.