Birmingham (UK) comedian Billy Lyday starts his Scientology reaction and his letter about one minute into the video.

Canadian Gerry Armstrong, a key Scientology insider, has been harrassed by  Scientologists for years because of what he knows. His story is in maisonneuve and it chilling. What can we do to help Garry Armstrong?  maisonneuve reporter Bruce Livesey could also be targeted.

If you find this incredible there are well documented stories on several sites including Operation Clam Bake and Religion News Blog/Apologetics Index.
Anonymous has caused an aggressive response from Scientology for their videos and world wide protests.
Previous post here.  Anonymous protests coverage and listings here.

The first anonymous video.