First of all, stating
Pat. Alexei denies there is persecution in the USSR
is rather ??? Well, I can't think of a word that some might not take as an insult. The sentence quoted is in the present or perfect tense. This makes no sense since the USSR does not exist anymore. Rather, it seems as if it was written this way for polemical reasons. Why not write it more honesty?
Something like, The former Metropolitan X, now Patriarch Alexei of Moscow, stated in 1980 that there was no persecution at that time." Of course, that isn't as polemical.
Secondly, Mr. Zollars states as unqualified fact that Patriarch Alexei "was a known KGB Agent (Agent Drozdov to be specific)". I have always thought of this as a rumor more than a fact. Where is the evidence from an unbiased source that this is fact and not a rumor? That the KGB would have a code name for him would not surprise me in the least since they would have code names for many high ranking people. That he could be in some way a KGB agent would not be shocking. However, what are the facts?
p.s. A story from the BBC, or the NY Times or Washington Post, Reuters, etc. I would consider a reputable source. The uncorroborated testimony of an agent of ROAC I would not consider a reputable source.