There are things being done at a local level but there are things that must be considered. There is a particular radical group that have very little access to local mosques but are in every university. This is not all one way, a certain London cleric was known to be delivering fire-brand sermons, The Mi5 knew this, interviewed him and told him as long there is not blood on the streets they wouldn't do anything to him.
Most of these radical clerics are coming from the Wahhabi school of thought which is being funded by petrol dollars. The majority cannot compete with free literature.
This is not clear cut by any means, at the same time other countries must not facilitate radical thought by using the media humiliate Muslims. If a country want to end terrorism its done by not participating in it, in the first place.