Could someone please explain what this has to do with the war we are fighting?
Depends upon how you define the war. If you say this is a war on terrorism, not much. If you say this is a war on radical Islam, quite a bit.
And if you read certain passages in the Koran, you come to the conclusion that, as the former PM of Singapore put it, as you try to separate radical Islamism from mainstream Islam, like wheat from chaff, you still have to realize they come from the same plant.