I've been thinking over this whole question of who has any contributory responsibility in regard to terrorism done in the name of some belief system.
I'll post again when I've formulated my thoughts, but meanwhile, here is something I came across:
http://www.mcb.org.uk/over-130-imam...or-london-attackers-in-an-unprecedented-move/
[Title, which sums it up, if you cbf'ed reading it: "over 130 imams religious leaders from diverse backgrounds refuse to perform the funeral prayer for london attackers in an unprecedented move"]
This does look like something very positive.
However, if you read right to the end (past the list of signatures under the main statement), you might have some reservations ...