Here's a link to a HuffPo interview with three experts on Scientology.
http://live.huffingtonpost.com/r/seg...c90a68c7001153
One of them, a guy named John Sweeney, did a documentary in 2007 for the excellent BBC documnentary series "Panorama" (which you used to be able to watch on The Discovery Channel before they went "all redneck all the time"). Here's a link th that one.
https://www.youtube.com/watch?v=u9YQVJXaNK8
John