Wow! Thanks for posting that link in the 607 thread! I'd been looking for the quote it has:
“It is not religious persecution for an informed person to expose publicly a certain religion as being false, thus allowing persons to see the difference between false religion and true religion.” —The Watchtower, 15 November 1963, page 688.
I must share it with Eoin Joyce because he thinks it's religious persecution to bring up what the WTS used to teach as "the truth".